Computer System Servicing NCII National Certificate NCII Computers Technology

2. Servicing

3. Computer System
Servicing

4.  Take Inventory
 Make space and time
 Prepare your CPU case
 Install motherboard
 Install the processor
 Install the processor
heat sink
 Install the RAM
 Install the SMPS
 Install the HDD
 Install CD/DVD drive
 Connect Expansion cards
 Install SYS/Rear cooling fan
 Bus cable connection
 Power Cable connection
 Front Panel connector
connection
Steps in assembling a computer system.

5. 1. TAKE INVENTORY
 Case/
Tower/Cabinet
 Motherboard
 Processor
 HeatSink and CPU
Fan
 SMPS
Before you start, take inventory of your parts.
Make sure you have the following components
and tools.
 Hard disk drive
 CD/ DVD drive
 RAM
 CMOS Battery
 A good screwdriver
sets

6. 2. MAKE SPACE, MAKE TIME
3. PREPARE YOUR CPU CABINET
4. INSTALL THE MOTHERBOARD
5. INSTALL THE PROCESSOR CPU
6. INSTALL THE CPU HEAT SINK
7. INSTALL RAM MEMORY
8. INSTALL POWER SUPPLY UNIT

7. 9. TO INSTALL HDD
10. TO INSTALL CD/DVD
11. INSTALL SYS/REAR COOLING
FAN
12. INSTALL EXPANSION CARDS
13. BUS CABLE CONNECTION
14. POWER CABLE CONNECTION
15. FRONT PANEL CONNECTOR

8. Computer System
Servicing 12

9. Understanding BIOS
BIOS (pronounced as "bay-os") or
the Basic Input/Output System of the
computer, is responsible in making sure
that all the other chips, hard drives,
ports, and the CPU function together.
The BIOS basically sets up your
computer. It loads your drivers and
boots the operating system. It shows all
the hardware components of your
computer with the operating system as
well.

10. It is usually stored on a Flash memory chip
on the motherboard, but sometimes the chip is
another type of ROM.
Upon turning on your computer, the BIOS
performs the following in sequence:
1. Check the CMOS Setup for
custom settings
2. Load the interrupt handlers and device
drivers
3. Initialize registers and power management
4. Perform the power-on self-test (POST)
5. Display system settings
6. Determine which devices are bootable
7. Initiate the bootstrap sequence
Understanding BIOS

11. Always put in mind that the first boot device on any
computer is the hard disk. However, if you are installing
an operating system, the BIOS needs to be configured to
set the system boot on the operating system through
flash driver installer.
According to etesda.gov.ph, upon turning the
computer on, press the keys that would run Setup. On
most computers, it would be keys: ESC, DEL, F1, F2, F12,
Ctrl-Esc, or Ctrl-Alt-Esc to enter setup. There is usually
a line of text at the bottom of the display that tells you
"Press ___ to Enter Setup."

12. 1. BIOS setup would depend on the
motherboard manufacturer. However,
these are the common, standard
options you may see in the BIOS setup:
2. Make sure to choose "Save Changes"
when you are changing settings in the
BIOS. Afterwards, this will restart the
computer so the new settings take
effect.

13. Mouse/Keyboard - "Enable Num Lock," "Enable the
Keyboard," "Auto-Detect Mouse"...
Drive Configuration - Configure hard drives, CD-ROM
and floppy drives
Memory - Direct the BIOS to shadow to a specific
memory address
Security - Set a password for accessing the
computer
Power Management - Select whether to use power
management, as well as set the amount of time for
standby and suspend
Exit - Save your changes, discard your changes or
restore default setting

15. actual

16. pad paper.
4 – 10. Upon turning the computer on, what
would be the keys to press on most computers
to be able to run the Setup?
2. According to etesda.gov.ph,
BIOS (pronounced as "bay-os") and BIOS
is an acronym for
B____I____O_____S_____?
1. __________ is basically sets up your
computer.
3. _________________is the order that
BIOS will try to load the operating system.

17. answer…
2. According to etesda.gov.ph, BIOS (pronounced
as "bay-os") and BIOS is an acronym for
B____I____O_____S_____
1. __________ is basically sets up your
computer.
3. ________________is the order that BIOS
will try to load the operating system
BIOS
ASI
C
NPU
T
UTP
UT
YST
EM
BOOT
SEQUENCE

18. 4 – 10. Upon turning the computer on, what
would be the keys to press on most computers
to be able to run Setup?
According to etesda.gov.ph, upon turning the
computer on, press the keys that would run Setup. In
any order.
4. ESC
5. DEL
6. F1
7. F2
8. F12
9. Ctrl-Esc
10.Ctrl-Alt-
Esc