CHAPTER 5: Upgrading Your Computer
58
Replacing the power supply
To replace the power supply:
1 Follow the instructions in “Preventing static electricity
discharge” on page 44.
2 Remove the two side panels by following the instructions
in “Removing the left side panel” on page 45 and
“Removing the right side panel” on page 46. Make sure
that you unplug the computer’s external power cable.
3 Disconnect the power supply cables from all
components (such as hard drives, optical and diskette
drives, and the system board), noting their locations and
orientation. (You will reconnect the cables after you
install the new power supply.)
4 Remove the four Phillips screws that secure the power
supply to the case.
Tools
You need a Phillips screwdriver to replace the power supply.
Warning
To avoid exposure to dangerous electrical voltages and moving parts, turn
off your computer, then unplug the power cord and modem cable before opening
the case.
Phillips screws
Phillips screws
8513217.book Page 58 Wednesday, August 27, 2008 3:30 PM
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