computer hardware maintenance & repairs computer hardware maintenance & repairs suleiman...
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Computer Hardware Maintenance Computer Hardware Maintenance & Repairs& Repairs
Suleiman Mohammed Suleiman Mohammed (mncs,mcpn)(mncs,mcpn)
InstructorInstructor
Institute of Computing & ICT, Ahmadu Bello University, Zaria.Institute of Computing & ICT, Ahmadu Bello University, Zaria.
Assembling the Hardware Installing the Operating Syste
m Compatibility Issues in Hardw
are
*Precautions in computer assembling
*Discharge oneself before handling hardware
*Hold the main board and expansion cards by edges
*Return the main board and peripherals to anti-static bags
*Disconnect the power before working on the system
*Choose the right combination of hardware
*e.g. Home use and web surfing
*LAN card or modem is needed
*no need to install sophisticated hardware
*Cost considerations
*never go for CPU with the highest speed
*choose a hard disk with appropriate capacity
*consider reputation and warranty
*Procedure 1: Installing the Power Supply
Open the computer case
Fix the power supply
Set the voltage supply at 200 - 230 V
*Procedure 2: Configuring the Main Board jumper
*CPU System Bus Frequency
*CPU Clock Ratio
*CPU Core Voltage
Setting up jumpers
*Procedure 3: Inserting CPU into the main board
*The socket, heat sink and fan support base are mounted onto the main board
*Heat sink and fan: prevent overheating
*Procedure 3: Inserting CPU into the main board
*Procedure 4: Inserting the RAM
Check the position of RAM module Insert the module vertically into the DIMM slot and push it in
*Procedure 5: Mounting the main board into the computer case
*Procedure 6: Main board signal connections
Connecting pins on the main board
Case signal connectors
Completed connectors
*Procedure 7: Connecting the Power Supply to the Main Board
Power supply connectors
*Procedure 8: Installing the expansion cards
*Install the video adapter first
*AGP card goes into the AGP slot
Position the expansion card horizontally over the slot
Secure the card to the case with a screw
Install other cards
*Procedure 8: Installing IDE devices
*IDE drives: hard disk, CD-ROMs and DVD-ROMs
*Set the jumpers on the drives before mounting
*Two IDE channels on the main board
*Each channel can attach to two devices
Jumpers on IDE device
*Procedure 8: Installing IDE devices
1. Mounting the device into the device bay with screw
2. Align the red strip on the ribbon cable
*Procedure 8: Installing IDE devices
3. Insert the connector into the IDE port
4. Insert the power supply connector
*Procedure 8: Installing IDE devices
*Master device: alone device on IDE cable
*Slave device: second device on the same cable
*Ultra ATA 66/100 IDE cable
*black: for Master drive
*grey: for Slave drive
*blue: for connecting to IDE port onboard
*Procedure 8: Installing IDE devices
*Installing CD-ROM drive
* Install the drive into an available bay
* Insert the power cord into the drive
*Connect the drive to the main board via the ribbon wire
*Connect the sound cable from the drive to the main board connector
*Procedure 8: Installing IDE devices
*Installing CD-ROM drive
Connect the sound cable to CD-ROM drive
Connect the sound cable to main board
*Procedure 9: System check
*Connect the power cable
*Switch on the computer
*Check the message on screen
*Set up BIOS and install OS if the system works fine
*Fine tuning the computer installation
*The drives are connected to the power supply properly.
*A fan is attached to the CPU with the power plug connected to the main board.
*Ribbon cables of floppy disk and IDE drives are attached correctly.
*All connections are tight.
*CPU core voltage is set correctly.
*Cards are inserted fully in slots.
*No wires protrude into any fans.
*Clean install
*All the content of the hard drive are erased and everything is installed from scratch
*Format the hard drive and install the OS
*Back up the data before clean installing an existing PC
*Upgrade
*A new OS is installed directly over the previous version
*Old files are left which affect the system
*Materials needed
*Hardware documentation
*Driver disks of hardware
*User’s menu of new OS
*Start-up procedures for installing an OS
*Start from floppy disk
*e.g. Windows 98
*Start from CD-ROM
*e.g. Windows XP
*Start from floppy disk (Windows 98)
*Prepare a boot disk
*Check the boot-up sequence
*Ensure the partition of the hard disk where OS is installed is active
*Insert the boot disk into the floppy disk
*Turn on the power supply
*Insert the Windows 98 CD-ROM into the drive and type “D:\setup.exe”
*Follow the on-screen prompts
*Start from CD-ROM (Windows XP)
*Check the BIOS boot sequence
*Insert Windows XP CD-ROM into the drive
*Boot the system
*Start installation process
*Remove the Windows XP CD-ROM
*Reboot the computer
Installing applications
Start
Have serialnumber? Have
disk space? Register
Now?
Submit
form
Finish
installation
Restartneeded?
Run
Enter
Serial #Yes
Find
Serial #
No
Run
install file
Yes
Free up
space
No
Fill out
form
Yes No
No
Restart
Yes
*Compatibility problem among main board, video adapter and expansion cards
*Solutions
*Place each expansion card in different slots
*Take turns at replacing every expansion card in a certain order
*Use step-by-step approach to analyze the installation of device driver.
Thank YouThank You