Project Hydra is an overclocking software for AMD Ryzen CPUs and Radeon GPUs. It allows users to customize their system for optimal overclocking, undervolting, or performance based on their cooling system and preferences. The software can automatically search for optimal Curve Optimizer values, manage advanced PBO2 settings, create custom overclocking profiles, and monitor system performance. It also includes tools for GPU overclocking and memory tuning to optimize the entire AMD system.

1. PROJECT HYDRA
OC-SANDBOX FOR AMD ECO-SYSTEM
HYDRA 1.3A PRO IS ALREADY AVAILABLE FOR PATREON SUBSCRIBERS
1USMUS 2021-2023

2. WHY PROJECT HYDRA?
PROJECT HYDRA - is the most advanced OC - sandbox that exists for Ryzen processors based on the Zen 3 and Zen 4 architecture and Radeon graphics
cards based on the RDNA 2 architecture. Thanks to this software the user can customize system to his personal needs, whether it is a cool overclock or the most
energy efficient undervolting. And most importantly, most of the processes are automated and have a built-in task assistant. Safe and unrestricted.
What this software can do:
● Automatically search for Curve Optimizer values relative to the THM, EDC, TDC, PPT, and FIT targets. It is possible to pause the test and even automatically
continue diagnostics if the system crashes.
● Easy management of advanced PBO2 settings. Even FIT Scalar and Thermal Limit is available to the user without rebooting the system.
● HYBRID OC is a proprietary combination of Curve Optimizer technology and customizable manual overclocking profiles. Also custom profiles have the ability
to change their frequency in real time depending on the load level for each CCD individually, resulting in a much better performance than Curve Optimizer, the
typical manual overclocking or PBO2. Switching between profiles is automatic and does not require user control. That is, the user can create his own personal
boost technology, which will meet individual requirements.
● Automatic loading and activation of profiles along with system startup.
● The ability to evaluate the cores boost or compare the performance of the system between the stock state and the tuned one.
● Ability to monitor cores for more than 21 parameters, similar alternatives among the software does not exist.
● Simultaneous profiling of up to 6 GPU's, and the number of profiles is not limited.
● Automatically overclock or undervolt the GPU depending on the desired power consumption or voltages. This means that the user can rebalance the power
efficiency of the GPU, of course if the silicon lottery allows.
● Dram Calculator for Ryzen. Help adjust timings for DRAM or evaluate performance with the MEMBECH test. It is possible to apply settings from OS.
● Fix the Windows thread scheduler behavior, thereby increasing performance or even prioritizing which CCD should be used by gaming applications.
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3. TABLE OF CONTENTS (CLICKABLE)
WHY PROJECT HYDRA? ……………………………………………………...………………...……….…… 2
SUPPORTED CPUs AND GPUs .……………………………………………………..………………….…... 4
CPU DIAGNOSTIC - PREPARING …...…………………..…………………...…………………………....… 5
CPU DIAGNOSTIC - MAIN SETTINGS ..……………………………………………………………….…..… 6
CPU DIAGNOSTIC - FIND AMD PBO2 CO ………...……....……………………………......……….….. 7, 8
CPU DIAGNOSTIC - FIND HYBRID OC CO …………………………………….………………………....... 9
CPU DIAGNOSTIC - PROFILE CREATION ………………………………..………….…………………... 10
CPU DIAGNOSTIC - HYDRA ASSISTANT ………...……………………...…………………….……….… 11
CPU DIAGNOSTIC - PROCESS …….…………………………………...……………………………..…… 12
CPU DIAGNOSTIC - RESULTS, AMD PBO2 TAB …..………………..…………………………….…….. 13
CPU DIAGNOSTIC - RESULTS, HYBRID OC TAB …..…………………..………………………….……. 14
HYBRID OC - ACTIVATION ……………………………………………...…………….…………………...... 15
HYBRID OC - WORKING WITH PROFILES ……...………………….…………………………… 16, 17, 18
HYBRID OC - WORKING WITH AUXILIARY CO TABLE ………………..…………………………....…. 19
HYBRID OC - STATUS INDICATORS ………………………………………..……………………………... 20
HYBRID OC - HOC MODE ………………………………..………………………………………….....……. 21
GAME PROFILE IS NOT ACTIVATING ………………………………..…………………………....……… 22
SYSTEM CRASHES - REASONS ………………….……………………………………...………….… 23, 24
SYSTEM CRASHES - FIXING ……………………………….…………………………………………...….. 25
SYSTEM CRASHES - NOTHING HELPS …………………….…………………………………………….. 26
TDC / EDC / PPT / TEMPERATURE LIMIT REACHED …………………………………………………... 27
BOOST TEST ……………………………………………………………………...…………………………… 28
COMPARE ………………...……………………………………………………………………..…………..… 29
MONITORING CUSTOMIZATION ………………………………………………………………………...…. 30
DYNAMIC PBO2 …………………………………………………………………………………………..…… 31
WHERE MANUAL OC? ……………………………………………………………...……………………..… 32
THE GAME IS LAGGING ...……………………………………………………….………………...………... 33
OVERRIDING BEST CORES ………………………………………………………………...………………. 34
INTERNAL BCLK ……………………………………………………………………………………...………. 35
CORE C6 STATE & PACKAGE C6 STATE ……………………………………………………...……….… 36
PCI-MUTEX HOLDING TIME HAS EXPIRED ……………………………………………………...………. 37
HYBRID OC SETTINGS …..…………………………………………………………………....………… 38, 39
RX-TUNER TAB ………………………………………..………………………………………………...……. 40
RX-TUNER TAB - ADVANCED SETTINGS ……………………......………………………...…………….. 41
GPU DIAGNOSTICS - PREPARING …………………..………………………..…………………...……… 42
GPU UNDERVOLTING - SETUP ……………………………………...…………………....………. 43, 44, 45
GPU UNDERVOLTING - PROCESS ……………………………………………………………………....… 46
GPU UNDERVOLTING - RESULTS ………………………...…………..………………………………....... 47
RADEON MONSTER PROFILE (RMP) …………………...…………....…………………..……... 48, 49, 50
RADEON MONSTER PROFILE (RMP) - CUSTOM PROFILE ………………………………………...… 51
DRAM CALCULATOR FOR RYZEN (DCFR) …………………...……………………………………... 52, 53
MEMBENCH …………………………………………………………………….………………………..……. 54
VERSION COMPARISON ……………………………..………………………………………………..……. 55
SPECIAL THANKS …………………………………………………………...…………….…………………. 56
HYDRA 1.3B PRO 3

4. SUPPORTED CPUs AND GPUs
Supported CPUs :
● AMD Ryzen™ 9 7950X, AMD Ryzen™ 9 7900X, AMD Ryzen™ 9 7900, AMD Ryzen™ 9 7950X3D, AMD Ryzen™ 9 7900X3D
● AMD Ryzen™ 9 5950X, AMD Ryzen™ 9 5900X, AMD Ryzen™ 9 5900
● AMD Ryzen™ 7 7800X3D, AMD Ryzen™ 7 7700X, AMD Ryzen™ 7 7700, AMD Ryzen™ 7 5800X3D, AMD Ryzen™ 7 5800X, AMD Ryzen™ 7 5700X
● AMD Ryzen™ 5 7600X, AMD Ryzen™ 5 7600, AMD Ryzen™ 5 5600X, AMD Ryzen™ 5 5600, AMD Ryzen™ 5 5500
Supported APUs :
● AMD Ryzen™ 7 5700G
● AMD Ryzen™ 5 5600G
Supported GPUs :
● AMD Radeon™ RX 6900 XT, AMD Radeon™ RX 6950 XT
● AMD Radeon™ RX 6800 XT, AMD Radeon™ RX 6800
● AMD Radeon™ RX 6700 XT, AMD Radeon™ RX 6750 XT, AMD Radeon™ RX 6700
● AMD Radeon™ RX 6600 XT, AMD Radeon™ RX 6650 XT, AMD Radeon™ RX 6600
● AMD Radeon™ RX 6500 XT
● AMD Radeon™ RX 6400
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5. CPU DIAGNOSTIC - PREPARING
Diagnostics in HYDRA is a process that allows you to find Curve Optimizer values and configure parameters for HYBRID OC. The process is quite long and for
AMD Ryzen™ 9 5950X for example can take about 8 - 12 hours. During diagnostics the user may observe spontaneous reboots, I hasten to assure you that this is
normal. In order to avoid problems during the diagnosis I want to give you some tips:
● Stable DRAM with overclocking or active XMP profile (DOCP). HYDRA uses Prime95 to detect core instability, and this in turn is very sensitive to DRAM
errors. Fulfilling this condition will allow you to avoid incorrectly estimating the capability of the core.
● AMD PBO2 settings in BIOS (UEFI) – do no matter. HYDRA will use it’s own optimal parameters during diagnostics.
● Recommended CPU LLC (Load Line Calibration) - Auto. Despite the high Vdroop this mode will provide the highest Curve Optimizer values.
If you are interested in manual mode, my advice is ASUS - 3, MSI - 4, ASRock - 2, GIGABYTE - High.
● CPU Voltage - Auto in BIOS (UEFI). Offset mode is forbidden.
● Recommended OS - Windows 10 build 2004 or newer. Windows 11 is fully supported.
● Chipset drivers or Ryzen Master – installation is not required. It does not affect the functionality of HYDRA.
● Windows Power Plan – Balanced (recommended). Other power plans are allowed.
● It is not recommended that you do any work, watch videos or play games during the diagnosis.
● It is not recommended to use third-party monitoring software during diagnostics, it may affect the accuracy of the data from the sensors.
● CPPC, CBP, Cool & Quiet and Preferred Cores should be Enabled. It can also be on - Auto (default state of the settings in the BIOS (UEFI)).
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6. CPU DIAGNOSTIC - MAIN SETTINGS
To perform diagnostics, press the DIAGNOSTIC button on the
bottom panel of the HYDRA. An auxiliary window with settings will
open in front of you. In the upper left part you can select the cores
that will participate in the diagnostics as well as the CO (Curve
Optimizer) start values. On the right side is the test control table, it
consists of 6 tests (3 tests each for multi and single-threading
diagnostics), the range of FFT values, the time in seconds for
each cycle and the checker, thanks to which you can increase the
load level.
Settings preset - is a collection of various test settings, in
particular FFT values. If you are not familiar with FFT and
Prime95, I recommend that you only use the presets, if you are an
advanced user - you have the opportunity to configure the tests to
your liking. In any case, what you see in this window are all
settings that are optimal for any system.
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7. CPU DIAGNOSTIC - FIND AMD PBO2 CO
FIND CORE CO VALUES - allows you to find the same CO
(Curve Optimizer) values that you may have seen in the BIOS
(UEFI) as well as additional(corrective) CO values for correct
operation of HYBRID OC. These values will be found relative to
the user parameters of the PBO (TDC, EDC, PPT, THM and FIT).
Note that these settings significantly affect the found CO
values and if you have conducted diagnostics for THM at 60
degrees - using the system at 90 degrees, for example, will cause
malfunctions.
If you do not plan to use HYBRID OC in the future, but only
the Curve Optimizer - turn on Only AMD CO.
CB23 - an additional important test that will determine if the
system is stable for a low-threaded load. By default, I recommend
to set it to on.
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8. CPU DIAGNOSTIC - FIND AMD PBO2 CO
CO step - determines the increment CO step for each new
test cycle. The optimal value of 2, allows you to balance the speed
and accuracy of the results found.
Compare CO - a small test that allows you to compare the
frequency, voltage, PPT and temperature between the standard
CO and the final one.
In the upper left corner are the AMD Curve Optimizer startup
settings for diagnostics. To speed up the process you can select
your values and select only those cores that need to be retested.
In any case, do not worry about the safety of the processor,
the HYDRA protection system can stop the diagnostic process if
anything happens and a message TDC / EDC / PPT /
Temperature limit reached appears in the log. I devoted a page to
solving this problem.
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9. CPU DIAGNOSTIC - FIND HYBRID OC CO
Important note, if you do not plan to use HYBRID OC in the
future, you do not need to perform the rest of the diagnostic steps.
In order to do this, disable FIND CCD CO VALUES and
PROFILE CREATION. This completes the diagnostic process for
you. For those who want to try HYBRID OC, let's continue.
FIND HYBRID OC CO - is another diagnostic that determines
the conditions and parameters for correct operation of HYBRID
OC technology. It consists of only one test - multi-threaded CO
search for each CCD.
If you are planning an undervolting for multi-threaded
performance, I suggest that you to lower the current MC test VID
value by 50-100mV. For advanced users, an important note:
This value should be approximately the value at which you plan to
do profiling for the ALL (AVX2) profile (very heavy load). Failure to
follow these recommendations can have an effect on the
performance level, for example with undervolting you might lose a
few hundred MHz.
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10. CPU DIAGNOSTIC - PROFILE CREATION
PROFILE CREATION - is the last stage of the diagnosis,
when the profiles for HYBRID OC are created based on the
previously obtained CO values. Also for the creation of profiles,
voltages are taken into account. It can be set beforehand, in the
HYBRID OC tab, selected as one of the presets during the
HYDRA ASSISTANT poll or it can be obtained depending on the
target values of PPT, TDC, EDC, THM and FIT. In the latter case,
not only Vdroop is taken into account, but also the individual
characteristics of the cooling system and other important factors.
In order to use the automatic search for the optimum voltage,
turn on Find best VID. If this setting is off, the profiles will be
created relative to the previously set voltages.
Important note: the obtained CO or frequency values for the
profiles may change slightly from diagnosis to diagnosis. Do not
look for a problem with this. The processor is a dynamic system,
each time the system starts up, the processor does a little training
and makes adjustments to the CO and other functions.
As you may have noticed, the diagnostic has a modular
structure. This means that you do not need to run a whole new
diagnostic if you change for example the voltages for the profiles
or if you want to re-diagnose a particular core. What you don't
need - just turn off (orange switches).
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11. CPU DIAGNOSTIC - HYDRA ASSISTANT
HYDRA ASSISTANT is a built-in assistant that allows the user
to communicate with the software product in a simpler language. If
the user in the Settings(the gear icon on the top toolbar) tab has
enabled Assistant, you will have to answer a few simple questions
before you can start the diagnostic.
The user is required to answer the questions quite clearly by
thinking through the answers. Why? If the user chooses to use a
bad cooling system, but wants incredible overclocking, this will
cause the diagnostics at some point to be stopped by the HYDRA
protection system, because one of the parameters has exceeded
the allowable value (PPT, TDC, EDC or THM). And this is, by the
way, quite a common problem.
You also have the option to skip the question, this will mean
that HYDRA will use the current settings and parameters.
In addition to diagnostics HYDRA ASSISTANT allows you to
solve system stability problems, but about that a little further.
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12. CPU DIAGNOSTIC - PROCESS
The diagnostic process is a long hours process, in addition to
the user-selected settings, it is also affected by the number of
processor cores and the silicon lottery (the better the sample, the
longer the test).
During diagnostics, the user can observe system reboots.
This is an absolutely normal phenomenon. After rebooting, the
diagnostic recovery system called PHOENIX will attempt to
continue the process automatically for 1 minute.
You have the ability to suspend the diagnostics at will with the
PAUSE button. Please note, that you will lose the diagnostic
results if you turn off the computer during the pause.
If for some reason the diagnostic process was interrupted,
there are temporary files so the user has a chance to continue the
process. This requires pressing the PHOENIX, WAKE UP! button.
If this button is not active - the temporary files do not exist or they
are corrupted.
The user also has the ability to shut down the system
automatically when the diagnostic process is finished.
When the diagnosis is complete, the user will be notified, all
profiles will be automatically filled in, saved and that's it, the
system is ready to turn on HYBRID OC or use classic PBO2.
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13. CPU DIAGNOSTIC - RESULTS, AMD PBO2 TAB
The AMD PBO2 tab not only stores search results for CO
values (diagnostic results), but also allows you to manage PBO2
settings in real time without rebooting the system.
Note, in order to start using the PBO2 settings which you see
on this tab, turn on Using PBO2.
For system security purposes, if the user enters an incorrect
value, it won’t be accepted. If the value is correct - the user will
see the changes in the monitoring panel, which is located at the
top of the screen.
Creating a backup copy or loading a previously saved profile
is also possible. The button with the eraser icon allows you to
reset all default values.
For easier CO control, each CCD has corresponding buttons
(plus icon and minus icon) that allow you to change the CO values
of the entire CCD at the same time. There is also a button next to
it to reset the CO values to the default state, i.e. 0.
Also keep in mind that all settings on this page are not
automatically saved, except for the Using PBO2 and
Dynamic PBO2 buttons. This means that the user must press the
save button (floppy disk icon).
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14. CPU DIAGNOSTIC - RESULTS, HYBRID OC TAB
The HYBRID OC tab contains three different types of data:
1. Auxiliary CO Table is a table, which is essentially a correction
table for AMD Curve Optimizer.
Why do we need this table? I think many have already noticed
that AMD has limited the CO to a maximum value of -30, so
this table has no capacity limit. Also this auxiliary table
contains 2 boost control curves at once, instead of one curve
as in AMD's case. This allows more efficient frequency control
of cores depending on load.
This table also contains the maximum allowable stable
frequency for each core (for the voltages you see in the 1T-2T
profile). This is very similar to the CPPC assignment.
Note that the values in this table are "raw", that is comparing
with something or other will not work.
2. Profile Table - the place where the profile parameters and
some of the controls are stored.
3. HOC mode - additional control of the HYBRID OC. I will tell
you about this in the chapter about stability and performance
problems.
If you see that the tables do not contain identical base values
(which you may have seen before diagnostics) I congratulate you,
your system is ready to turn on HYBRID OC.
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15. HYBRID OC - ACTIVATION
After you have successfully completed the diagnostics you
can start using HYBRID OC. To do this, click the button in the
lower right corner. If all went well - you will see that
button became inactive. The state of the pressed buttons is
always saved automatically. The next indicator button is
responsible for the activity of the AMD Curve Optimizer
technology, don't forget to activate it too.
If you want HYDRA to automatically start and activate
profiles, follow these steps (the order of action does not matter):
● Click the “ON” button in the lower right corner.
● Go to the settings menu (the gear icon on the top control
panel), then activate the Auto-load APP with OS setting.
Next to the HYBRID OC activation and deactivation buttons,
the user can find the buttons for saving the current profiles,
creating a backup copy of the profiles as well as the button for
loading profiles.
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16. HYBRID OC - WORKING WITH PROFILES
Each of the profiles you see in the table is designed to work
with a certain number of threads and a certain load. Each profile
has its own individual voltages, a so-called “base” frequency for
each CCD and the ability to work in dynamic or static mode. Of
course, all of the above can be set by the user himself.
If the user wants to change a value or a dynamic state, simply
edit the value. When you start editing the profile, HYBRID OC will
automatically turn off to avoid problems.
To help the user adjust the voltage, there is a color indication.
My recommendation is orange for low-threaded profiles and green
for multi-threaded profiles.
The frequencies for CCD1 and CCD2 are the start
frequencies through which the profiles are switched so that the
system is stable in all conditions. If the Dynamic state is enabled,
it means that the profile is able to ramp up and down frequency in
real time, depending on the load. Unlike AMD boost, HYBRID OC
technology is able to control the frequencies of each CCD
individually.
An important note. I recommend to run a profile rebuild after
each manual change of voltages in the profiles. To do this, run the
diagnostics with only one item enabled - PROFILE CREATION.
This procedure will not take more than a minute.
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17. HYBRID OC - WORKING WITH PROFILES
It is also possible to disable the use of the profile. In this case
instead of this profile the standard AMD boost will be used, with or
without PBO2, depending on whether Using PBO2 is enabled in
the AMD PBO2 tab.
I suggest that you consider the following example, which you
see on the picture:
● I disabled the 1T-4T profile because I like the way the AMD
boost works on my CPU for tasks that don't use more than 4
threads (the name of the profile describes the number of
threads for which it exists). Note that the boost will be limited
by the temperature value - 75 degrees.
● I also disabled dynamic mode for the
ALL (GAME) profile, I don't want the CPU frequency to
change while playing.
That is, the user has the ability to build something of his own
from “LEGO”.
The CUSTOM#1 and CUSTOM#2 profiles assignment implies
that you attach your own profile to one of the applications, which
will be activated when you run the corresponding application. I will
talk about them in more detail on the next page.
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18. HYBRID OC - WORKING WITH PROFILES
Open HYDRA settings (the gear icon on the top toolbar).
You can attach an unlimited number of applications to each
CUSTOM# profile. To update or download the list of available
applications for profiling, click on the corresponding icon shown in
the picture. The list of applications is ordered by the amount of
physical memory used. Highlight the application you are interested
in and then confirm your selection by clicking on the circle icon
with a check mark.
As an example, I added 2 applications for the CUSTOM#1
profile as well as a timer. These settings will automatically enable
the profile in the time range from 00:00 to 12:00 if applications
from the list (which is presented just below the timer settings) are
detected.
Note, if you do not want to use a timer, leave the timer field
with zeros. Also note that the timer setting format is 24-hour.
Under the right list the user can find the button to save the
profile, as well as the button to delete the selected application.
Recall that all controls contain tooltips.
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19. HYBRID OC - WORKING WITH AUXILIARY CO TABLE
As mentioned earlier, the Auxiliary CO Table is a table that is
essentially a correction table for AMD Curve Optimizer. Also this
table also contains the maximum allowable stable frequency for
each core.
All values here are the “heart” of control for all HYBRID OC
profiles. The user can manipulate data in real time without
disabling HYBRID OC. A CO change within ten milliseconds will
be accepted and the user can see the frequency change (or not).
Increasing CO will increase the frequency, decreasing CO will
decrease the frequency. It's simple here. Step size ? My
recommendation is a step of 5-10 units. If you enter a too high
value, the system will reboot and the settings will return to the
state of the previous save.
CO LT - controls the HYBRID OC boost for low-threaded
profiles. For Ryzen 9 - 1T-6T(8T), for Ryzen 5 and Ryzen 7 -
1T-4T.
CO MT - controls the HYBRID OC boost for multi-threaded
profiles, i.e. for all other profiles that are not listed in the paragraph
above.
Max - defines the maximum frequency of which the active
core is not allowed to exceed. Roughly speaking, it is an
“emergency brake” on frequency increases in low-threaded loads.
Otherwise, the boost under no-load conditions may cause the
system to reboot.
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20. HYBRID OC - STATUS INDICATORS
The data tables are also able to show the user which profile is
currently active, as well as CO values that are the “bottleneck” of
the system.
In my example, core 1 and core 8 prevent further frequency
ramp of the current profile (if dynamic mode is enabled). It is not
worth fighting this phenomenon because changing the CO values
will not improve the quality of the cores.
This indication can also help you to debug profiles if you
observe stability problems. It is enough to reduce the highlighted
value step by step (step 5 - 10) or to reduce the CO value for the
core number that is causing the failure (HYDRA ASSISTANT will
tell you after reboot).
In any case, you are free to conduct your own experiments.
You may also notice that the numbering of the cores has a
scarlet background - this means that all those cores are doing
some work.
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21. HYBRID OC - HOC MODE
HOC mode - allows the user to improve the overall stability or
performance of the system by changing a number of additional
HYBRID OC settings. The recommended values are
Performance 1 or Balanced. This option controls the following
parameters that you can find in the settings menu (the gear icon):
● Light load MT offset and Light load LT offset - determines the
maximum allowed frequency for ultralight load for MT / LT
profiles correspondingly. I.e. profile base frequency + offset =
maximum frequency for ultra-light load.
● AVX load MT offset and AVX load LT offset - determines the
CO surcharge value that applies within the load limits of AVX1
to AVX2 for a multi-threaded / low-threaded tasks.
● GAME CO offset - is similar to the previous point, but for the
game load. Offset CO relative to the Auxiliary CO Table.
Of course you can adjust them yourself.
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22. GAME PROFILE IS NOT ACTIVATING
A fairly common question that users have is “why does the
game profile not turn on?”. I suggest that you go to the tab with the
application settings and take a look at the lower left group of
settings called HYBRID OC Settings.
ALL (GAME) profile has a number of conditions that must be
met:
● The game must be in focus, that is, in the foreground.
● GPU MEMORY trigger - is a value determining the minimum
amount of dedicated video memory, which will serve as a
signal for the game profile activation trigger. If you have a
game that requires much less memory, the trigger might not
work. You will need to manually adjust this value. Also the
condition of this trigger includes the condition of the previous
item.
● GPU CORE trigger - the minimum value of the GPU usage,
which is required to activate the game profile.
Important note. Execution of all previous triggers is also
required. If 0 is set, this trigger will be ignored (disabled).
The purpose of these triggers is to get rid of false activation of
the game profile in mining and other applications where it is not
required.
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23. SYSTEM CRASHES - REASONS
Sudden rebooting of the system is one of the most unnerving
and “mysterious” things. HYDRA ASSISTANT was introduced to
solve problems more easily, but before we look at its suggestions I
suggest that we look at the possible causes:
● Too high CO value in AMD PBO2 tab or in Auxiliary CO Table
(HYBRID OC tab).
● HOC mode too aggressive (HYBRID OC tab).
● The user manually set too high maximum frequency value for
the core in the Auxiliary CO Table (HYBRID OC tab).
● The user did not recreate the profiles after changing the
profile voltage (VID) or CO.
● If it happened during the game - the GAME CO offset is too
high.
● The base frequency of some profiles is too high.
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24. SYSTEM CRASHES - REASONS
Less common causes:
● Attempting to use in parallel other overclocking programs,
FAN/RGB control app’s or little-known monitoring programs.
● The user has installed a new cooling system or a new
motherboard.
● The user is trying to use the overlocking features from the
BIOS (UEFI) in parallel.
● The user is trying to use non-trivial stress tests, which
generate a load greater than any of the stresses that can be
encountered during gaming or work.
● The user has changed the VRM or DRAM settings in the
BIOS (UEFI).
● The system was diagnosed at room temperature, which is
quite different from the operating temperature. The
diagnostics may have been performed using a chiller.
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25. SYSTEM CRASHES - FIXING
I think many of you may have been frightened by the list of
possible causes, so in this regard all changes will be done by
HYDRA ASSISTANT instead of you (you can too, if you give an
answer - ignore help). The user is still required to give a correct
answer, as before, which describes what the user was doing
before the failure occurred. As a result, HYDRA ASSISTANT will
automatically change the parameters for the core or cores that
caused the failure (this information is provided by the OS) and
saves changes. All the changes HYDRA ASSISTANT will make
can be seen on the LOGGING tab, a kind of "cheat sheet" for you.
As optional steps, the user may be prompted to:
● Re-create the profiles because the CO has changed.
● Clean the log of the operating system from the error records,
so that in the future when you restart HYDRA you will not be
prompted to corrected errors again, that have been recently
corrected.
I would like to note that the HYDRA ASSISTANT is quite
flexible and allows you to solve problems for:
● HYBRID OC disabled, Using PBO2 enabled.
● HYBRID OC enabled, Using PBO2 disabled.
● HYBRID OC enabled, Using PBO2 enable.
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26. SYSTEM CRASHES - NOTHING HELPS
This page is intended for those users who have not been able
to solve the problem with HYDRA ASSISTANT (page 25) and also
read the list of reasons (page 23, page 24).
Unfortunately there are situations when the system continues
to be unstable despite user attempts to change the situation with
HYDRA ASSISTANT answers. For such cases I would like to
suggest you to disable the 1T-4T profile. By doing this the user will
move the task of determining the maximum stable frequencies
from HYDRA to the standard boost.
The main reason for this problem is incorrect labeling of cores
with CPPC tags. That is, in a pair of the fastest cores some core is
almost the worst of the whole CCD. During single threaded task
execution, OS thread scheduler constantly transfers task
execution between two quasi-best cores, which results in HYDRA
not having enough time to reduce frequency and the system
crashes or freezes.
In turn, AMD does not see this as a problem, because the
processor can formally reach the required frequency (according to
the specification). As for the enthusiasts - they are forgotten. To fix
this problem I created a feature called Overriding best cores (you
can find it on the general settings page), but it is still quite "raw".
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27. TDC / EDC / PPT / TEMPERATURE LIMIT REACHED
One of the main tasks of HYDRA is to keep the processor
safe. Since manual overclocking never had a built-in protection
system I created my own system which monitors the state of the
processor with 4 sensors:
● Max PPT (W) - determines the maximum allowable power
consumption of the processor.
● Max EDC (A) - Electrical Design Current. Determines the
maximum allowable Short Term Transient Cap.
● Max TDC (A) - Thermal Design Current. Determines the
maximum allowable Long Term Power Cap.
● Max temperature (°C) - the values of the maximum allowable
thermal limit for the CPU.
If the monitoring system sees that one of these values has
been reached - HYDRA will stop the current diagnostic process or
will go into throttling mode (for a short period of time) if it
happened while HYBRID OC was running.
By default, these values are quite “clamped” and in case of
messages “TDC / EDC / PPT / Temperature limit reached!” it is
recommended that the user increase these values (Safety System
settings group). Please note, that the maximum CPU temperature
cannot be increased, it consists of what AMD considers safe.
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28. BOOST TEST
BOOST TEST (button in the bottom right corner) - a diagnostic
test which will check the single-threaded performance of each core
individually. In addition to the maximum and average frequency, it
can tell you about the average core power consumption, voltages
and temperatures. Fully compatible with AMD Curve Optimizer,
HYBRID OC and HYBRID OC + AMD PBO2.
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29. COMPARE
COMPARE - the evaluation mode of the custom processor
tuning. Allows to compare standard CPU state with HYBRID OC,
with HYBRID OC + AMD PBO2 or just with AMD PBO2.
Cinebench R23 in multi-threading mode is used as a reference
test. In addition to the performance evaluation, the user has the
possibility to evaluate the changes in voltage, temperature, power
consumption and the frequency at which the processor was
tested.
The button to start the test is in the lower right corner. No
preparation of any kind is required.
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30. MONITORING CUSTOMIZATION
Ryzen processor monitoring in HYDRA is the most advanced
available, it can display information about the processor cores on
24(!) parameters, and the standard sampling rate is only 10ms. At
the same time, processing such large amounts of data does not
affect the use of CPU time.
The user has the ability to customize the monitoring: selection
of the sensors of interest as well as the choice of data ordering
(current value, maximum, minimum and average).
Next to the words HOT SPOT and L3 CACHE, on the right
hand side there is an icon with a gear and a wrench, this button
will take you to the menu of monitoring settings. For information
about the sensor's purpose, hover the mouse pointer over the
sensor of interest.
Real-time CO info - this option allows the user to find out what
CO values for example are currently set in the BIOS (UEFI) or
during the operation of third-party programs, to know what the
algorithm does with the CO values. It is not recommended to use it
permanently, because polling of this data leads to an increase of
CPU usage.
GPU monitoring does yet not have any additional settings
except for the ability to switch between adapters.
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31. DYNAMIC PBO2
For those who for some reason do not like HYBRID OC there
is an alternative called Dynamic PBO2. Its point is to increase
Curve Optimizer values in real time by the offset value for
multi-threaded load, because only for multi-threaded load there is
a small reserve in the earlier found values of the Curve Optimizer.
The triggers to activate the additional offset are the
CPU usage level and the average EDC throttling level between
cores. If everything is clear with the first trigger, the second one is
essentially a load level trigger. For example, 8 corresponds to the
load boundary between light and medium. There are sensors such
as EDC Throttler and SC_CAC in the monitoring to demonstrate
load level estimation for the user. The higher the number, the
heavier the load.
Note.This technology can work only when HYBRID OC is
disabled.
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32. WHERE MANUAL OC?
MANUAL OC - is the good old-school manual overclocking
that users have become accustomed to over the last few decades.
In the case of Ryzen processors, frequency control is possible for
each CCD individually by user.
To make HYBRID OC work with only one, global settings is
enough:
● Activate the profile called MANUAL OC (it is at the very end
after all the profiles).
● Activate HYBRID OC by pressing the HOC ON button.
● If you want the profile to load and activate automatically with
the start of the system, do not forget to activate the function
Auto-load APP with OS (it’s located in the global settings tab
of the application, in the upper left corner).
Many of you remember that using manual overclocking is a
pretty dangerous thing. To address MANUAL OC safety issues, I
have equipped the profile with a throttling system if one of the
HYDRA safety values is exceeded. If HYDRA monitoring notices
such a situation, the profile is disabled and the standard AMD
boost is enabled for a short period of time. The throttle time is
controlled by the setting Timeout of throttling (s) (global settings
tab, Safety System group).
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33. THE GAME IS LAGGING
There are two reasons for this phenomenon: a hardware
problem and a software problem. I would like to draw your
attention to the second one. The operating system is quite a
complex app and as you know not all functions work as they
should (so historically). One of the most common causes of
intermittent framerate is memory cache “overflow”. And the cache
itself is never completely cleared.
To solve this unpleasant situation I made for you an automatic
cache cleaner - Clear standby cache (global settings tab,
Main Settings group), which clears all cache after a certain period
of time. Just activate it and enjoy your favorite game. You also
have the ability to adjust the frequency of cache cleaning.
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34. OVERRIDING BEST CORES
Overriding best cores - function that allows you to redefine
which cores should be used by the system in low-threaded tasks
to maximize performance results. In fact, this feature is designed
to fix the problem of incorrect CPPC labeling of cores. The
controls are also in the list of global settings.
A secondary goal of this feature is to try to maximize the use
of physical cores in low-threaded tasks without using SMT. In this
way, the user can expect to see an increase in performance.
The sensitivity threshold (%) - the minimum CPU usage value
of the active application at which the override function of the best
cores will be applied.
Best core# - the order of the cores of the user override.
CCD’s for game - allows the user to "assign" a game
application to the selected CCD. This mode also tries to use only
physical processor cores as much as possible and only if
necessary use SMT or even second CCD (if it is a dual-chiplet
processor).
Important note. This feature is still under development and
there may be conflicts with HYBRID OC or performance
degradation in some specific applications.
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35. INTERNAL BCLK
In the global settings section is the control of the
internal BCLK. HYDRA allows you to control the BCLK value in
real time.
Please note, that if your motherboard has an external BCLK,
changing the value of the internal BCLK will cause the system to
crash.
A second important note. Together with the change of BCLK
the frequencies of the memory controller, DRAM, infinity fabric,
CPU frequency and other buses will change. The recommended
step is 0.1MHz.
The development of the external BCLK control is already
underway.
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36. CORE C6 STATE & PACKAGE C6 STATE
The global settings section contains quite a few additional
important functions, core sleep management being one of them.
The C6 state is called the deep sleep state, often when the
core awakens from this state there is an uncontrolled frequency
increase (I think you have seen in monitoring programs 5250MHz+
for Zen 3), which leads to the system crashing. This is quite a
common phenomenon, but as such there is no solution in the form
of a microcode update so far. Disabling it may improve the stability
of the system. For Zen 4, disabling it will lead to a degradation of
the boost.
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37. PCI-MUTEX HOLDING TIME HAS EXPIRED
The user may see the message PCI-MUTEX holding time has
expired or Retrying to send a command, this occurs when third
party software tries to interfere with HYDRA.
HYDRA uses a global PCI bus mutex to interact securely with
the processor. All applications, which communicate with the
processor have to use it too, so that the command sent to the
processor is not corrupted. In plain language, every application is
queued up one after the other. In the case of “mediocrely” written
code, this queue can artificially stop for a long period of time. As a
result, the HYBRID OC dynamic frequency changing and profile
switching system also stops. At best, the user gets a system
freeze, at worst, a reboot.
I can refer to such applications as RGB control software,
FAN control software, overclocking programs or monitoring
programs. Since I can't call users to boycott some useful apps, I
have developed a way for the HYDRA to try to send a CPU
command without a queue. It is sufficient for the user to disable
Global PCI mutex (global settings tab). The disadvantage of this
action is that it deprives one of the two ways of command
protection, in which case only the hardware SMU mutex is left.
Bottom line: if you see constant problem messages in the log,
you should take a closer look at this way of solving the problem. If
it's a one-time message, ignore it.
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38. HYBRID OC SETTINGS
In the lower right corner of the global settings are the
HYBRID OC technology controls. In 99.9% of cases, touching
these settings is pointless, because their appearance is what I
came to after 2 years of development of the project, but
nevertheless I will tell you which setting is responsible for what.
AVX1, AVX2, FMA thresholds - are thresholds that tell HYDRA
which values of SC_CAC (aka EDC Throttling) are one or the
other load level (light, normal or heavy, digitally only). These
values are extremely important because they determine the
behavior of the dynamic profiles (intensity ramp or frequency
limits).
The user has the opportunity to tell HYDRA his opinion, which
load corresponds to what. For example, if you increase the values
for FMA3 threshold for MT (%), the ALL (FMA3) profile will be
activated much less often, because HYDRA will not consider that
the condition for enabling this profile has been reached.
Core C0 trigger (%) - minimum value (threshold) at which
HYDRA will consider a CPU core active. This setting is one of the
main conditions for enabling one or another profile. Important
note. If the value is too low, HYBRID OC will be more sensitive to
background loads. Too high value will make HYBRID OC
unresponsive to impulse loads or even slow down the activation of
the correct profile, which in turn will have a negative effect on
system performance and stability.
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39. HYBRID OC SETTINGS
Holding time MT and Holding time LT - determines the time at
which the profile remains active after the load has partially or
completely disappeared. Allows HYBRID OC to reduce the
number of false profile switching due to impulse load.
Holding time is defined in operating cycles. This means that
before HYDRA tries to switch the profile it will make 3 sequential
sensor checks to see if the load matches the current profile. If
among these checks HYDRA finds a confirmation that the profile
is correct, the holding time will be added again by 3 more checks,
otherwise another profile will be switched, which is more
consistent with the current load.
This means that too small values will lead to very frequent
switching of profiles, not always correct, and too high values will
make HYBRID OC more "thoughtful".
OC response speed (ms) - this parameter determines how
often HYBRID OC should interrogate sensors and how often
decisions about switching profiles or changing frequency should
be made. The minimum value that HYDRA can operate is 6ms,
the optimal value is 10ms.
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40. RX-TUNER TAB
I think many of you have noticed that AMD does not pay
proper attention to RX 6000 series graphics cards. Standard
presets offered by AMD Software: Adrenalin Edition do not bring
any real benefit and there is simply no "auto overclocking"
customization.
Also the level of graphics card performance relative to energy
efficiency is a poorly researched topic. Video cards as well as
Ryzen processors have sweet spots of voltage and temperature,
where the user can get special results, but not many people know
about it.
The purpose of the RX-TUNER module is to introduce you to
the hidden capabilities of your adapters. RX-TUNER also supports
unlimited profiling for up to 6 adapters simultaneously. Each
adapter in each profile has settings for fans, power, voltages,
frequencies, timings presets and a large number of hidden
settings, such as memory voltage, curves, and so on.
Changes to settings are applied in real time if the profile is
active, but saving is required if the user wishes not to lose current
progress. The user can back up profiles, load profiles, reset
defaults (individual or all).
The user can also be informed about which profile is currently
active.
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41. RX-TUNER TAB - ADVANCED SETTINGS
The user has the possibility to set power limits, frequencies
for domains, voltages of the VRAM subsystem, curves and even
to choose a curve model.
The settings are applied simply by clicking on the button with
the lightning icon. The user will then have a choice whether to
reboot the system himself or trust the HYDRA driver to reboot. In
the second case HYDRA will restart the video adapter driver
automatically within 7-8 seconds.
If the GPU profile(s) was already active, there is no need to
reactivate after restarting the driver, HYDRA does it by itself.
Important note. During automatic driver restart all side
applications and games should be closed. Otherwise third party
application or game will crash.
The modular system allows you to reset only part of the
parameters to the default state. To do this, use the DEFAULT
button. Of course, you then have to apply the settings using the
button with the lightning icon on it.
Always pay attention to the indicator buttons. If you notice that
the floppy or lightning icons are highlighted, it means that there
are unsaved or unapplied changes.
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42. GPU DIAGNOSTICS - PREPARING
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In order to avoid problems during the diagnosis I want to give you some tips:
● Actual version of Visual C++ Redistributable Runtimes All-in-One otherwise neither monitoring nor any processes will work.
● It is recommended to perform a clean installation of the drivers after using Display Driver Uninstaller.
● Adrenalin 22.7.1 - 22.8.2 has a number of critical bugs in OpenGL. I recommend using newer versions of the drivers.
● The folder MSI Kombustor 4 x64 should be located in the root folder of the application, next to the folder LOGS and CB23.
● Availability of a video card that is supported by HYDRA - page 4.
● At the same time it is forbidden to use applications that can load the graphics adapter.

43. GPU UNDERVOLTING - SETUP
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Undervolting is a step-by-step algorithm for reducing the
operating voltages of the graphics card and testing for stability. It
consists of three phases:
● Stability testing of the user value for VRAM.
● Lowering core voltage, stability testing in light loads.
● Lowering the voltage of the core, stability testing in extreme
loads, similar to Furmark.
For each step of video card diagnostics and tuning there is a
choice of certain tests. Prefix gl - indicates that the test uses
OpenGL, vk - Vulkan API. By default, all settings are individual and
optimal.
Important note, HYDRA allows you to perform diagnostics not
only for active GPUs, but also for those to which no output cables
are connected. Also, if the adapter is not active, only Vulkan tests
will be available for it.
The duration of the test is set by the Duration setting and
measured in seconds. Also the modular system allows the user to
disable/enable tests at will.

44. GPU UNDERVOLTING - SETUP
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Core freq. - target frequency to which the core should aim
despite the fact that the voltage will be reduced step by step.
Important note: for super-heavy load adapter will choose
suitable frequencies by itself, i.e. we almost can't influence them
by our requests.
Start offset - this value defines the offset of the core voltages
with respect to the default volt-frequency curve. That is, for
frequency Y the voltages will use X minus offset.
Step offset - the amount of voltage by which the start (current)
core voltage will be changed with each new step.
Compare is a built-in benchmark that allows the user to
compare the results of the default state of the adapter and the
tuning state.
Timings - preset with the timings, on which the selected video
adapter will be diagnosed.
Tweaks - some video card driver optimizations that allow you
to increase the performance.

45. GPU UNDERVOLTING - SETUP
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The POWER TUNE section is specially designed to enable
hidden parameters in diagnostics. For example to fix a problem of
too limited TDC. VDDCI and MVDD are responsible for VRAM
power management. Depending on the mode HYDRA
(DO UNDERVOLTING or DO OVERCLOCKING) will offer some
presets. If this causes you difficulties I recommend to turn this
section off.
I would like to draw your attention to the hints. Almost every
element contains information about standard values to make it
easier for you to orient yourself.
Tip. If you have a non-refresh (not 6X50) series graphics card
you have a chance to reduce the power consumption of the
graphics card by a dozen watts by reducing the MVDD relative to
the reference by 50-100mV. Lowering the Soc voltage can also
help, but often lowering the voltage will lead to stability issues. If
you dare to try, I suggest starting at 25-50mV. VDDCI can be
reduced to 75mV relative to the reference.
Soc offset - this value defines the offset of the Soc voltages
with respect to the default volt-frequency curve. That is, for
frequency Y the voltages will use X minus offset. A smaller number
means less power consumption.

46. GPU UNDERVOLTING - PROCESS
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The diagnostic process is relatively short and may be
accompanied by a blinking screen. Do not worry, every change in
VRAM frequency is accompanied by this phenomenon.
Since the quality of the search for errors (artifacts) depends
directly on the duration of the diagnostic step, the user may notice
that at one moment the system hangs. This means that the test
detected errors (artifacts) too late and this led to a reboot of the
video driver. There is no need to panic, it won't break the
diagnostic process. As a last resort, if the system reboots you will
be saved by the Phoenix system, which will automatically start
HYDRA, restore the diagnostic process and continue.
At the end of the process the user will find the results of the
diagnostics in the log (LOGGING tab). These results will also be
automatically written to the Global profile for the corresponding
adapter (if there is more than one in the system) on the
RX-TUNER tab.

47. GPU UNDERVOLTING - RESULTS
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My AMD Radeon RX 6700 XT graphics card improved its
power efficiency by 49W, i.e. -28%, which is a good result. There
is no loss of performance in this case. I want to note, that the
results will depend on core temperature, memory temperature and
silicon lottery proper. Sometimes there is a dependence on the
video driver.
Looking ahead I would like to say that we are at the very
beginning of the evolution of undervolting and overclocking. AMD
has gone to great lengths to prevent users from improving their
product. The current implementation of video card diagnostics
does not allow to get the maximum, that is why in future updates
you will see the diagnostic procedure through curves. Roughly
something similar to AMD Curve Optimizer.

48. RADEON MONSTER PROFILE (RMP)
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SPECIAL THANKS
RADEON MONSTER PROFILE (RMP) - it is a combination of
unique settings and a new volt-frequency curve for RDNA2 GPU’s,
which ultimately allow the video card to reveal its maximum
potential. Particular attention was paid to the memory subsystem,
the operating voltage was reduced by 6%, which ultimately
reduced the heat of GDDR6 modules.
The main mechanism for increasing performance is to
increase the requested core frequency relative to the operating
voltage.
The profiles are universal and adaptive. They do not affect the
factory settings for thermal throttling and fans. RMP does not
increase the operating voltage or change the current limit. The
only important prerequisite is a good cooling system. Fortunately,
the non-reference models in most cases meet the requested
conditions.
RMP is an integral part of HYDRA and will be presented as
several profiles with different maximum allowable power limits.

49. RADEON MONSTER PROFILE (RMP)
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SPECIAL THANKS
Since each user video card differs from other video cards in
the quality of silicone and cooling system RMP has a modular
structure, ie absolutely every user creates its own individual profile
in a few clicks. Believe me, it is very simple.
1. First of all you should decide what maximum power
consumption should be limited to the video card. Highlight
what you are pleased with.
2. CORE offset - this determines how much less voltage the
video card needs to use to achieve the same frequency as
before. In other words, the lower the value, the higher the final
frequency. Range -50mV - -125mV.
3. VRAM offset - similar to the previous point. We make the
memory cooler and more energy efficient, and “give” the free
watts to the needs of the GPU core. Most adapters are able to
function without failure at -75mV or even -100mV offset.
4. SOC offset - similar to the previous point. The recommended
offset can range from 0 to -100mV. Note, that too high offsets
can cause SOC throttling, so I suggest to choose this value
after the stability of offsets for CORE offset and VRAM offset
have already been tested in the previous steps.

50. RADEON MONSTER PROFILE (RMP)
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SPECIAL THANKS
Once you have defined all the settings, click USE IT!, HYDRA
will automatically apply the new settings and also reload the video
driver. Important note, reloading the video driver is always
accompanied by a blinking screen. Any graphical shell of the
application may crash, so try not to keep applications running
while working with RMP activation.
After applying the settings, I suggest you test the stability of
the graphics card in 3DMark Time Spy or your favorite games. If
the current settings are stable you can increase even more offsets
to get more performance. Tactics try it out-test it.
Optional. After applying RMP you can perform your own fine
tuning of the parameters in the RX-TUNER tab. For example, if
you are using a profile with a much larger PPT for RX 6800 XT -
RX 6950 XT you may need to increase Core frequency (max) to
get additional performance. There is no rule as such for Core
frequency (min), but you can try Core frequency (max)
-150MHz or -200MHz. Again, these actions are optional and in
90% of cases are not required.

51. RADEON MONSTER PROFILE (RMP) - CUSTOM PROFILE
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Users have a great opportunity to use RMP profiles from
@Veii or other enthusiasts created in the famous
More Power Tool (MPT).
In order for the custom RMP profile to appear in HYDRA it
must be placed in the appropriate folder with the name of the
video card. Note, that the profile must have an .mpt extension.
To activate it, you must highlight it as done in the bottom
picture and press USE IT!.
Since any custom profile is an author's creation, HYDRA does
not offer the option to change the parameters, as this can also
affect stability.

52. DRAM CALCULATOR FOR RYZEN (DCFR)
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SPECIAL THANKS
DCFR - is an evolutionary step of
DRAM CALCULATOR FOR RYZEN. Key features of the new
version are advanced DRAM monitoring, automatic determination
of memory ranks, number of modules as well as the ability to set a
preset or custom values in 1 click. There is also support for DDR5
memory.
In order to "get" the corresponding preset user should select
the desired frequency, as well as the type of memory chips, and
then press the GET OPTIMAL PRESET or GET FAST PRESET
button. The differences between the two versions of the presets
are minimal and consist of improved stability if the user chooses
the OPTIMAL preset.
After clicking on the APPLY SETTINGS button, the user will
be prompted for the categories of settings to apply. That is, if
desired, the user can, for example, set only the timings from the
offered profile.
Note, that in order for the presets to be applied correctly in the
UEFI (BIOS) all DRAM settings must be in auto mode. Otherwise
HYDRA may not be able to change them. It is also possible that
some motherboards will not allow you to change the voltage
settings. In this case, the user will have to make the appropriate
changes himself.

53. DRAM CALCULATOR FOR RYZEN (DCFR)
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SPECIAL THANKS
Presets can not guarantee that your DRAM matches them for
a number of technical reasons. That's why there is another tool
that can help you tune it faster - manual tuning.
Changing individual parameters is also not a problem,
intuitive simple interface and built-in assistants help you with the
right sequence.
The fields with input voltages have their own protection, which
will not allow you to damage the processor or DRAM.

54. MEMBENCH
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SPECIAL THANKS
MEMbench - built-in benchmark to evaluate DRAM
performance. Memory is evaluated relative to the speed of
execution of the operation in 512 megabytes, random access time
(latency), as well as bandwidth (read/write). Note that the results
will not correlate with the AIDA results because the tests used do
not represent an ideal scenario with sequential writes or reads but
a random one (i.e. real operating conditions).
The test time takes just under two and a half minutes and is
directly proportional to the timings. The better the timings are
chosen, the faster the test will finish.
If the memory is unstable, the test will automatically stop. You
can find information about this on the LOGGING tab.

55. VERSION COMPARISON
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SPECIAL THANKS
VERSION COMPARISON
FEATURE HYDRA HYDRA PRO
HYBRID OC Not available: Custom profiles, 1T-4T dynamic profile state
No limitations
OVERRIDING BEST CORES Not available
CRASH ASSISTANT Not available
CPU / GPU MONITORING No limitations
AMD PBO2 No limitations
DYNAMIC PBO2 Not available
RX-TUNER Not available: Core Curve Control, 3 profiles maximum
RADEON MONSTER PROFILE (RMP) Not available: Extreme performance profiles
DRAM CALCULATOR FOR RYZEN (DCFR) Not available: Apply settings from OS
MEMBENCH No limitations
CPU DIAGNOSTIC Not available: Find best VID (Zen 3), Max CO -80 (Zen 4), Jump test
GPU DIAGNOSTIC Not available: ADDITIONAL POWER TUNE
COMPARE No limitations
BOOST TEST No limitations
CLEAR STANDBY CACHE No limitations

56. SPECIAL THANKS
HYDRA 1.3B PRO 56
TABLE OF CONTENTS (CLICK)
SPECIAL THANKS
Vadym Kosmin (@A_z_z_y), @Veii, Alexey Shalpegin (@15432), Keaton Blomquist (@sbski), @patrickschur_, @PJVol, Ivan Rusanov
@ManniX, @Reknez, @LEIV, @Tyler15e, @wanderinarcheologist, Martin Malik, Ann Martiné, @DayDreamer, @rizlah
@kutale, @arcanazen, @RdWing, @Bloax, @Riwwelorsch, @Gadfly, @ACE, @Devin, @profitkaa

57. PROJECT HYDRA
OC-SANDBOX FOR AMD ECO-SYSTEM
NEW FEATURES EVERY MONTH
1USMUS 2021-2023