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3 Remove the system fans and fan cage by following the instructions in “Replacing system
fans” on page 41.
4 Remove the PCI riser assembly by following the instructions in “Installing and removing PCI
expansion cards” on page 39.
5 Remove the memory modules by following the instructions in “Installing memory” on
page 36.
6 Remove the heat sinks and processors by following the instructions in “Replacing or adding
a processor” on page 43.
7 Disconnect all cables from the system board, noting their locations and orientation. (You will
reconnect the cables after you install the new board.)
8 Loosen the two thumbscrews (1) that secure the system board to the server.
9 Slide the system board toward the back of the server until it is free of the eight retaining
standoffs (2), then lift the board from the chassis.
10 Place the old system board in a static-free bag for storage.
11 Insert the new system board into the chassis, aligned with the eight retaining standoffs, then
slide the board toward the front of the case so the board is held by the standoffs.
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