FRU Removal and Replacement 8-47
!
WARNING: CPUs and memory DIMMs have parts that operate
at high temperatures. Wait 2 minutes after power is removed
before touching any module.
CAUTION: When removing the system motherboard, be careful not to flex the
board. Flexing the board may damage the BGA component
connections.
NOTE: Removing the system motherboard requires the removal of other FRUs.
Review the removal procedures for the fans, MMBs, CPUs, and drive
cage before beginning the system motherboard removal procedure.
1.
Remove the three covers from the system chassis.
2.
Remove fans 3 and 4 in the PCI area (the inner fans).
3.
Record the positions of the MMBs and CPUs, and remove the MMBs and
CPUs.
4.
Remove the CPU air flow deflectors
➊, if present.
5.
Loosen the three captive Phillips screws holding the middle support
bracket
➋. The screws pop up when sufficiently loosened. Pull the bracket
straight out.
6.
Remove the second drive cage (left cage in pedestal/rack, bottom cage in
tower), if installed, or the blank panel.
7.
Remove the two Phillips flat-head screws that secure the small cover
➌ to
the left side (pedestal/rack) or bottom (tower) of the system and remove the
panel. Set aside the screws. (Removing the small cover provides better
access to the power harness bracket.)
8.
Remove the power harness bracket
➍ as follows: Push up on the spring
latch
➎ to release the bracket, slide the bracket forward, and remove it.
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