Can the performance of a computer system be increased through overclocking such that the percentage gain of work performed is greater than the percentage increase of electricity consumed?
BatteryXPRT for Android benchmark reliably evaluates the battery life of Android-based devices. The benchmark provides an intuitive user interface, a runtime allowing it to be completed within one work day, and easy-to-understand results.
Hybrid CPU GPU MATLAB Image Processing BenchmarkingDimitris Vayenas
An attempt to quantify the substantial performance improvement observed on Windows 8.1\ Nvidia GTX 780M\Intel HD 4600 via the latest NVIDIA Driver (326.01) that may help other users - particularly of the MATLAB Image Processing and Parallel Computing Toolboxes - to consider upgrading...
BatteryXPRT for Android benchmark reliably evaluates the battery life of Android-based devices. The benchmark provides an intuitive user interface, a runtime allowing it to be completed within one work day, and easy-to-understand results.
Hybrid CPU GPU MATLAB Image Processing BenchmarkingDimitris Vayenas
An attempt to quantify the substantial performance improvement observed on Windows 8.1\ Nvidia GTX 780M\Intel HD 4600 via the latest NVIDIA Driver (326.01) that may help other users - particularly of the MATLAB Image Processing and Parallel Computing Toolboxes - to consider upgrading...
TECHNICAL BRIEF▶NetBackup Appliance AutoSupport for NetBackup 5330Symantec
Symantec AutoSupport is a set of infrastructure, process, and systems that enhance the support experience through proactive monitoring of Symantec Appliance hardware and software, as well as providing automated error reporting and support case creation.
Through automation, internet access, and case management integration, Symantec can vastly improve the support process and give our support engineers the tools to solve problems faster. The AutoSupport infrastructure within Symantec analyzes the Call Home data from each appliance to provide proactive customer support and incident response for hardware failures thus reducing the need for an administrator to initiate support cases. It also enables Symantec to better understand how customers configure and use appliances, and where improvements would be most beneficial.
AutoSupport can also correlate the Call Home data with other site configuration data held by Symantec, for technical support and error analysis. With AutoSupport, Symantec greatly improves the customer support experience.
White Paper: Monitoring EMC Greenplum DCA with Nagios - EMC Greenplum Data Co...EMC
This white paper describes a software plug-in that can be used with the Nagios Core infrastructure monitoring framework to display the state of a wide range of components in the EMC Greenplum Data Computing Appliance (DCA).
Digital Gateway is the Digital Marketing Agency. we have mention Everything in this Slide Please have a look. for any query text us on skype : Elaborationindia
TECHNICAL BRIEF▶NetBackup Appliance AutoSupport for NetBackup 5330Symantec
Symantec AutoSupport is a set of infrastructure, process, and systems that enhance the support experience through proactive monitoring of Symantec Appliance hardware and software, as well as providing automated error reporting and support case creation.
Through automation, internet access, and case management integration, Symantec can vastly improve the support process and give our support engineers the tools to solve problems faster. The AutoSupport infrastructure within Symantec analyzes the Call Home data from each appliance to provide proactive customer support and incident response for hardware failures thus reducing the need for an administrator to initiate support cases. It also enables Symantec to better understand how customers configure and use appliances, and where improvements would be most beneficial.
AutoSupport can also correlate the Call Home data with other site configuration data held by Symantec, for technical support and error analysis. With AutoSupport, Symantec greatly improves the customer support experience.
White Paper: Monitoring EMC Greenplum DCA with Nagios - EMC Greenplum Data Co...EMC
This white paper describes a software plug-in that can be used with the Nagios Core infrastructure monitoring framework to display the state of a wide range of components in the EMC Greenplum Data Computing Appliance (DCA).
Digital Gateway is the Digital Marketing Agency. we have mention Everything in this Slide Please have a look. for any query text us on skype : Elaborationindia
This document provides an overview of a new CPU capability called Intel® Speed Select
Technology – Base Frequency (Intel® SST-BF), which is available on select SKUs of 2nd
generation Intel® Xeon® Scalable processor (formerly codenamed Cascade Lake). The
document also includes benchmarking data and instructions on how to enable the
capability.
Value propositions of this capability include:
• Select SKUs of 2nd generation Intel® Xeon® Scalable processor (5218N, 6230N, and
6252N) offer a new capability called Intel® SST-BF.
• Intel® SST-BF allows the CPU to be deployed with an asymmetric core frequency
configuration.
• The placement of key workloads on higher frequency Intel® SST-BF enabled cores
can result in an overall system workload increase and potential overall energy
savings when compared to deploying the CPU with symmetric core frequencies
MOAC 70-687 - Configuring Windows 8.1 MLO WorksheetLab 10Confi.docxraju957290
MOAC 70-687 - Configuring Windows 8.1 MLO Worksheet
Lab 10
Configuring Network Settings
This lab contains the following exercises and activities:
Exercise 10.1
Configuring Network Adapter Settings
Lab Challenge
Configuring Wireless Network Settings
Exercise 10.1
Configuring Network Adapter Settings
Overview
In this exercise, you will configure network adapters and their properties.
Mindset
While the common settings are configured directly using the Network and Sharing Center, you can configure additional settings using Network Connections window and the network adapter properties.
Completion time
20 minutes
Question 1
What type of adapter is it the adapter using?
Question 2
What value is the Jumbo Packet configured to?
Question 3
What value is the Receive Buffer Size configured to?
Question 4
What value is the Send Buffer Size configured to?
Question 5
You have a 1 Gbps adapter and you want to reduce the speed to 100 Mbps. Which settings would you select from Figure 11-2 to reduce the speed and which value would you select?
Question 6
What is the current profile?
Question 7
What is the status of network discovery and what is the status of file and printer sharing?
Question 8
What is the status of network discovery and what is the status of file and printer sharing?
Question 9
What is the status of network discovery and what is the status of file and printer sharing?
Question 10
Is Public folder sharing turned on or is it turned off?
19. Take a screen shot of the Advanced sharing settings window by pressing Alt+Prt Scr and then paste it into your Lab 10 worksheet file in the page provided by pressing Ctrl+V.
[copy screen shot over this text]
Lab Challenge
Configuring Wireless Network Adapter Settings
Overview
In this lab challenge, you will identify the settings that are unique to wireless network adapters.
Mindset
Because the physical security capabilities of standard Ethernet networks do not apply, wireless networks must have additional security mechanisms.
To complete this challenge, specify how each of the following elements (see Figure 10-3 and Figure 10-4) contribute to the security of the network.
Figure 10-3
Wireless adapter properties
Figure 10-4
Wireless security properties
1. Connect even if the network is not broadcasting its name
2. Security type
3. Encryption type
4. Network security key
MOAC 70-687 - Configuring Windows 8.1 MLO Worksheet
Lab 9
ConfigurING IP Settings
This lab contains the following exercises and activities:
Exercise 9.1
Manually Configuring TCP/IP
Exercise 9.2
Testing Network Connections
Lab Challenge
Configuring IP at the Command Prompt
Exercise 9.1
Manually Configuring TCP/IP
Overview
In this exercise, you will configure the IP configuration of a computer running Windows 8.1.
Mindset
As an administrator, you will have to configure the IP settings for workstations and servers.
Completion time
20 minutes
Question 1
What is the IPv4 address and subn ...
When compared to the no-cache solution results, the Intel solution increased database performance in our tests by up to 65 percent using a real-world database workload. Additionally, the Intel solution provided 7 percent greater database performance when compared to the competing solution. This means that with the Intel solution, administrators can give their databases an extra boost to improve performance for end users, especially when RAM upgrades and additional storage are no longer feasible options.
Validate existing environments before you install with the Backup Exec Partner Toolkit and discover more satisfying, more confidence-boosting deployments. Join Symantec Backup Exec Product Managers for a Google Hangout On Air—Pre-Deploy. Post–Delight. New Backup Exec Partner Toolkit—on 16 August at 1.00 p.m. ET. See how the generated reports in this free toolkit reduce the time to deployment and deliver post deployment delight.
View recording: http://buex.ec/T00LK1T
Windows server power_efficiency___robben_and_worthington__finalBruce Worthington
Computer Measurement Group Journal, Spring 2009.
Windows Server power efficiency has improved from release to release over the past decade. This paper presents the methodology and data used to validate the existing Windows Server power management algorithms, covers server-class processor and component power measurements, and discusses some Windows’ power measurement tools and future power optimizations.
Intel's Data Center & Connected Systems Group and Diane Bryant shares the latest news on the latest Intel Xeon E5v2 family of processors and technologies like Intel Network Builders to enable the re-architecture of the Data Center.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Cosmetic shop management system project report.pdf
Efficient Overclocking Experiment
1. Can a modern computer be overclocked while increasing its energy efficiency?
By Josh Mullis
Project Design Plan
Computers are used in a variety of applications to organize data, store data, and present data in
a way that is easy for people to understand and recognize. Computers help people get value
and meaning from their data in a much more efficient way than pen and paper alone can do.
Today’s computers are designed with both performance and energy efficiency in mind. The
processor is designed to idle along, then throttle up to its manufactured peak speed only when
it is experiencing a high load. Overclocking of a processor, and the RAM that the computer uses,
is a method used to increase the speed at which they perform, allowing for faster performance
and more work to be done. When overclocking is performed, more electricity is used.
Can the performance of a computer system be increased through overclocking such that the
percentage gain of work performed is greater than the percentage increase of electricity
consumed? If so, the efficiency of the system will be increased and the value of overclocking
will be a plausible solution. This can have great benefits if done on a large scale in a data-center
environment using hundreds of computer systems acting in a server role. If overclocking
doesn’t make the computer more efficient then this is not a plausible solution.
Literature Review
There are many different examples of overclocking computers on the internet. There are far
fewer examples of measuring the efficiency of overclocking. Two examples are cited in this
literature review.
Gavrichenkov tested nine different processors and system configurations, overclocked to
different levels, to determine any gain or loss experienced in efficiency. It was determined that
due to differences in processor architecture, motherboard architecture and system
configuration there is not a definite set of rules to measure efficiency. Due to the differences,
an actual measure of the electricity used must be performed while the system is under load. It
was noted that the test session would be very interesting, due to the popularity of
overclocking. It was also noted that most of today’s modern motherboards allow for simplified
overclocking. Due to changes in manufacturing processes, the advertised limit of a processor is
now mostly determined by the amount of heat generated, rather than the actual limit imposed
by the physics and engineering of the given processor. Because of this, it is much easier to
overclock a system, provided ample consideration is given to cooling, and an adequate cooling
system is used. The article states that with the current technology, the wattage measured will
only rise slightly when the core voltage of the processor is not altered. When the core voltage is
kept at a stock setting, but the frequency of the processor is increased, overclocking yields only
2. a small increase in consumed power. If, however, the core voltage is increased, this can make
overclocking less efficient. (Gavrichenkov 2010)
Schmid and Roos overclocked an Intel i7-3770K, which uses a new 22nm manufacturing design
(much smaller than previous generations), the same processor as the one being used in this
experiment; and noted that the new architecture allows for increased overclocking headroom
without having to raise the core voltage supplied to the processor very much. This behavior
allows for overclocking, without having to significantly raise the power, thus making the
potential for improved energy efficiency more realistic and achievable.
Experimental Design Steps
Performance and peak energy consumption (peak watts) will be measured four different times
as follows:
1. A computer system is custom built using the components listed in the ‘tools and
technologies’ section, item 1.
2. Windows 7 Professional is installed on the test system.
3. A plug power meter is purchased.
4. PassMark® Performance Test™ software is downloaded and installed.
5. Intel® Extreme Tuning Utility (Intel® XTU) version 4.2 is downloaded and installed.
6. One test of the computer is run to obtain a performance baseline and energy
consumption baseline.
7. Three different tests of the computer are run, using incrementally increased levels of
overclocking.
8. The results are measured using the plug power meter and test software.
9. The peak watts and performance are graphed to give a visual representation of the
results.
Reasoning
Plugging the computer’s power cord into the power meter allows for measuring the overall
wattage peak of the computer system. This is one of the measurements a typical data center is
concerned about. This also greatly simplifies the experiment because the need to measure the
individual power draw of every component (processor, RAM, power supply, motherboard, etc.)
is eliminated. By performing four different tests, the performance experienced and watts used
can be reasonably compared. This allows for the first test to act as a baseline for performance
and energy consumption, the second test to measure the effect of overclocked RAM, the third
test to measure the effect of overclocked RAM and processor, and the fourth test to measure
the effect of overclocked RAM and a max overclocked processor.
3. Sequence of Events
1. Plug the Weanas™ Plug Power Meter into the surge protecting outlet.
2. Reset the power meter to zero using a paperclip.
3. Set the power meter to show “Hi” watts by pushing the “function” button.
4. Plug the main power cord for the computer into the power meter.
5. Start the computer and logon to Windows.
6. Download the PassMark® Performance Test™ software from their website and install it.
7. Run the Performance Test™ software using the computer’s stock, non-overclocked
speeds to determine your performance score.
8. Take a screenshot of the completed test score using OneNote, PrtScn or Snipping Tool
and save it.
9. Record the “Hi” watts reading on the power meter.
10. Restart the computer and press the ‘delete’ key to enter the Asus UEFI BIOS.
11. Go to the tuning tab and set the memory to use Intel XMP Profile 2.
12. Press F10 to save the settings and boot to Windows.
13. Reset the power meter to zero using a paperclip.
14. Run the Performance Test™ software a 2nd time.
15. Take a screenshot of the completed test score using OneNote, PrtScn or Snipping Tool
and save it.
16. Record the “Hi” watts reading on the power meter.
17. Download and install the Intel® Extreme Tuning Utility (Intel® XTU) version 4.2.
18. Launch the Intel® Extreme Tuning Utility
19. Change the stock processor multiplier from 39x to 40x on all four cores and press the
apply button.
20. Reset the power meter to zero using a paperclip.
21. Run the Performance Test™ software a 3rd time.
22. Take a screenshot of the completed test score using OneNote, PrtScn or Snipping Tool
and save it.
23. Record the “Hi” watts reading on the power meter.
24. Open the Intel® Extreme Tuning Utility
25. Change the stock processor multiplier from 40x to 43x on all four cores, then increase
the core voltage on the processor 1 step up so it can run stable, and press the apply
button.
26. Reset the power meter to zero using a paperclip.
27. Run the Performance Test™ software a 4th time.
28. Take a screenshot of the completed test score using OneNote, PrtScn or Snipping Tool
and save it.
29. Record the “Hi” watts reading on the power meter.
30. Compare the Performance Test™ score and “Hi” watts reading from all four tests.
4. Tools, Technologies, and Measurement Units
1. Windows 7 Professional workstation that is custom-built to allow overclocking.
a. Rosewill BLACKHAWK Gaming ATX mid-tower case
b. CORSAIR HX750 power supply
c. ASUS P8Z77-V LGA 1155 motherboard
d. Intel i7-3770K CPU
e. Cooler Master Hyper 212 EVO - CPU Cooler
f. 32GB G.SKILL F3-1866C10Q RAM
g. XFX Double D FX-785A-CDFC Radeon HD 7850 2GB video card
h. OCZ Technology 256GB Vertex 4 Solid State Drive (SSD)
i. LG WH14NS40 Blu-Ray burner
2. Weanas™Plug Power Meter http://www.amazon.com/Weanas-Energy-Voltage-
Electricity-Monitor/dp/B00DTMQ1S6/
a. Peak or ‘Hi’ watts will be measured
3. PassMark® Performance Test: http://www.passmark.com/products/pt.htm
a. The Performance Test software runs through a series of tests:
i. CPU tests: Mathematical operations, compression, encryption, SSE,
3DNow! instructions and more
ii. 2D graphics tests: Drawing lines, bitmaps, fonts, text, and GUI elements
iii. 3D graphics tests: Simple to complex DirectX 3D graphics and animations
iv. Disk tests: Reading, writing and seeking within disk files
v. Memory tests: Allocating and accessing memory speed and efficiency
b. A proprietary performance score will be used to determine the computers
overall performance of all the tests run
4. Intel® Extreme Tuning Utility (Intel® XTU) version 4.2:
https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=3483&DwnldID=23
084&keyword=%22%22extreme+tuning+utility%22%22&lang=eng
Variables
Independent variable: The level of overclocking performed on the computer.
Dependent variables: The performance measured as a proprietary test score, and the peak
watts measured using a power meter.
Controlled variables: The same computer is used and the power meter, which is plugged into
the same surge protector and outlet, doesn’t change.
5. Threat Reduction to Internal Validity
Systematic error is reduced through controlled variables, by using the same power meter,
plugged into the same surge protector and outlet. The dependent variables, the performance
test and power meter, are reset to zero before each test to assure an accurate measurement.
The independent variables are written as part of the experiment and delineated so that each
test can be reproduced with the exact hardware and settings. This allows for independent
verification of the findings.
Hypothesis
The hypothesis of this experiment is that the efficiency of an Intel i7-3770K, LGA 1155 computer
system can be increased, while also increasing the system’s speed and ability to do work
through overclocking. This hypothesis was based on the statement from the Schmid and Roos
article: “This behavior allows for overclocking, without having to significantly raise the power,
thus making the potential for improved energy efficiency more realistic and achievable.”
Process of Data Collection
The initial test, test 1, was used as a baseline for performance and electricity usage. This test
measured a peak of 185.9 watts and a Performance Test score of 4708.6.
Peak Watts Performance Test
185.9 4708.6
6. In test 2, the RAM was overclocked using XMP profile 2, while the CPU was not changed. This
test measured a peak of 186 watts and a Performance Test score of 4905.2. The result was a
4.01% increase in performance, and .05% increase in wattage over the baseline.
Peak Watts Performance Test Performance Increase Wattage Increase
186 4905.2 4.01% .05%
In test 3, the RAM was still overclocked using the XMP profile 2, and the CPU was overclocked
by changing the frequency multiplier from 39x to 40x. This changed the maximum frequency of
the CPU from 3.9 GHz to 4.0 GHz. This test measured a peak of 187.8 watts and a Performance
Test score of 4905.2. The result was a 7.18% increase in performance, and 1.01% increase in
wattage over the baseline.
Peak Watts Performance Test Performance Increase Wattage Increase
187.8 5073.2 7.18% 1.01%
In test 4, the RAM was still overclocked using the XMP profile 2, and the CPU was overclocked
by changing the frequency multiplier from 40x to 43x. This changed the maximum frequency of
the CPU from 4.0 GHz to 4.3 GHz. This test measured a peak of 188.5 watts and a Performance
Test score of 5256.2. The result was a 10.42% increase in performance, and 1.37% increase in
wattage over the baseline.
Peak Watts Performance Test Performance Increase Wattage Increase
188.5 5256.2 10.42% 1.37%
7. Appropriate Methods
All tests were performed using the same computer hardware and testing equipment. Peak
wattage is an effective way to measure the energy used since the voltage is constant at 120
volts. The amperage used can be determined by dividing the peak watts by the voltage as
follows:
Test 1 Test 2 Test 3 Test 4
Peak Watts 185.9 186 187.8 188.5
Peak Amps
(Watts/120)
1.54 1.55 1.56 1.57
Since the amperage increases are proportional to peak watts, it is sufficient to measure only the
peak watts. Four tests were used to get a good look at the increases over the baseline of the
first test.
Results
The graph below shows that the performance gained with each successive test was greater
than the energy increase observed. Test 4 produced the greatest delta between energy and
performance indicating it was the most efficient of the tests.
185.9 186 187.8 188.5
4708.6 4905.2 5073.2 5256.2
TEST 1 TEST 2 TEST 3 TEST 4
Energy and Performance
Peak Watts (Energy) Test Score (Performance)
8. The increase in efficiency is better illustrated by graphing the percentage change of each
increase, over test 1 baseline, as shown below. Test 2 had a 4.04% delta while test 4 had a
9.05% delta.
Conclusion
Confirmation of Hypothesis
The results of the experiment confirm and document that the efficiency of an Intel i7-3770K,
LGA 1155 computer system can be increased, while simultaneously increasing the system’s
speed and ability to do work through overclocking.
Experimental Design as a Key Factor
The design of this experiment was important in determining the reliability of the results. A
single independent variable, the level of overclocking performed, was used. If more than one
independent variable is used in an experiment, it alters more than one thing between test
groups, making it impossible to know what caused the measured outcome. A clear objective
was important in the design of the experiment. The objective was taken from the hypothesis, in
this case, to see if the efficiency could be increased. An experimenter must reliably determine
that the independent variable was the cause of the measured difference in results. Controlling
as many variables as possible makes the experiment’s results more reliable. If random factors
are allowed to enter the experiment, the accuracy of the experiment is reduced and the results
are unreliable.
0.05
1.01 1.37
4.01
7.18
10.42
TEST 2 TEST 3 TEST 4
Efficiency Increase
Peak Watts (% Increase) Test Score (% Increase)
9. Replication
Replicating this experiment can be achieved by purchasing the same tools and technologies,
such as computer components, and power meter; then using the same measurement tool, the
performance testing software. The experimenter will need knowledge of modern PC building
techniques to custom-build the computer, and then be able to overclock it.
Evaluation of Validity
As the experiment is replicated by independent parties, the outcome can be verified through
consistent results. Consistency in the results lends credibility to them. If the results are
inconsistent then the design of the experiment must be changed until consistent results can be
obtained.
Sources
1 - Gavrichenkov (Apr 12, 2010) CPU Overclocking vs. Power Consumption,
http://www.xbitlabs.com/articles/cpu/display/power-consumption-overclocking.html
2 - Schmid, Roos (May 23, 2012) Overclocking Core i7-3770K: Learning To Live With
Compromise, http://www.tomshardware.com/reviews/ivy-bridge-overclocking-core-i7-
3770k,3198.html