Removal and replacement procedures 54
11.
Remove the power supply cage.
To replace the component, reverse the removal procedure.
System board
CAUTION: To avoid ESD damage, when removing electrostatic-sensitive components from the
failed system board, place the components on a static-dissipating work surface or inside separate
antistatic bags.
To remove the system board:
1. Power down the server (on page 26).
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Unlock the tower bezel.
4. Remove the access panel ("Access panel" on page 31).
5. Remove the air baffle ("Air baffle" on page 32).
6. Remove the rear system fan ("Rear system fan" on page 50).
7. Remove the capacitor pack ("Capacitor pack" on page 46).
8. Remove the heatsink:
a. Loosen one pair of diagonally opposite screws halfway, and then loosen the other pair of screws.
b. Completely loosen all screws in the same sequence.
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