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Important: Record all the settings in the Setup Utility, as you might have to re-enter these settings after
replacing the system board.
Attention:
• Read
“Safety inspection checklist” on page iv and “Installation guidelines” on page 41 to ensure that you
work safely.
• Turn off the server and peripheral devices, and disconnect the power cords and all external cables, see
“Power off the server” on page 9.
• If the server is in a rack, remove it from the rack. See
“Remove the server from the rails” on page 138.
• Remove any locking device that secures the server, such as a Kensington lock or a padlock.
• Place the server on its side with the cover up.
Watch the procedure
A video of this procedure is available at YouTube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-
AU3iY3F7lq3qfqr5caGbIu
.
Procedure
Step 1. Make preparation for this task.
a. Remove the server cover, see
“Remove the server cover” on page 144.
Note: The heat sink and processor could be very hot. To avoid burning yourself, wait for a few
minutes after turning off the server before you remove the server cover.
b. If applicable, remove the intrusion switch, see
“Remove the intrusion switch” on page 100.
c. Remove the front bezel, see
“Remove the front bezel” on page 84.
d. If applicable, remove the optical drive, see
“Remove an optical drive” on page 70.
e. If applicable, remove the optical drive cage, see
“Remove the optical drive cage” on page 76.
f. If applicable, remove the cage bar, see Step 3 in
“Remove the server cover” on page 144.
g. If necessary, remove the rear fan, see
“Remove the fan (front and rear)” on page 80.
h. If necessary, remove the M.2 drive, see
“Remove an M.2 drive” on page 104.
i. If necessary, remove the PCIe adapters, see
“Remove a PCIe adapter” on page 120.
j. Remove the front panel, see
“Remove the front panel” on page 87.
k. Remove all memory modules, see
“Remove a memory module” on page 112.
l. Remove the heat sink and fan module, see
“Remove the heat sink and fan module (trained
technician only)” on page 93
.
m. Remove the processor, see
“Remove the processor (trained technician only)” on page 134.
Step 2. Disconnect all the cables connected to the system board.
Attention: Disengage all latches, cable clips, release tabs, or locks on cable connectors
beforehand. Failing to release them before removing the cables will damage the cable connectors
on the system board. Any damage to the cable connectors may require system board replacement.
Step 3. Remove the nine screws that secure the system board in the sequence shown on the illustration
below. Keep the screws for future use.
150
ThinkSystem ST50 V2 Maintenance Manual
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