H3C UIS-Cell 3000 G3, User Manual

Page: 118 / 171

111
Replacing the system board
WARNING!
To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before
touching them.
Guidelines
To prevent electrostatic discharge, place the removed parts on an antistatic surface or in antistatic
bags.
Removing the system board
1.
Power off the server. For more information, see " Powering off the server ."
2.
Remove the server from the rack. For more information, see " Removing the server from a rack ."
3.
Remove the power supplies. For more information, see " Replacing a power supply ."
4.
Remove the access panel. For more information, see " Removing the access panel ."
5.
Remove the air baffles. For more information, see " Removing air baffles ."
6.
Remove the fan cage. For more information, see " Replacing the fan cage ."
7.
Disconnect all cables connected to the system board.
8.
Remove the PCIe riser cards and PCIe modules, if any. For more information, see " Replacing a
riser card and a PCIe module ."
9.
Remove the Mezzanine storage controller, if any. For more information, see " Replacing the
Mezzanine storage controller ."
10.
Remove the mLOM Ethernet adapter, if any. For more information, see " Replacing an mLOM
Ethernet adapter ."
11.
Removed the DIMMs. For more information, see " Replacing a DIMM ."
12.
Remove the processors and heatsinks. For more information, see " Replacing a processor ."
13.
Remove the system board:
a.
Loosen the two captive screws on the system board, as shown by callout 1 in Figure 148 .
b.
Hold the system board by its handle and slide the system board toward the server front.
Then lift the system board to remove it from the chassis, as shown in callout 2 in
Figure 148 .