Removing The System Backplane From The 8335-Gca Or 8335-Gta - IBM S822LC Servicing

Following a system backplane replacement, you must set the system serial number on the system
backplane. There is a tool to set the system serial number, go to Fix Central (www.ibm.com/support/
fixcentral/) to download the tool and follow the instructions for setting the serial number.

Removing the system backplane from the 8335-GCA or 8335-GTA

To remove the system backplane from the IBM Power System S822LC (8335-GCA and 8335-GTA) system,
complete the steps in this procedure.
About this task
As part of the system backplane replacement, the system processor modules are moved from the old
system backplane to the new system backplane.
Note: When the heat sink is removed from the system processor module, the TIM is typically adhered to
the heat sink. Unless damaged, the TIM that is adhered to the heat sink can be reused. If the TIM is
damaged, do not reuse the removed heat sink. Before you begin the system backplane removal and
replacement procedure, ensure that you have a spare TIM and heat sink, part number 01AF286, on hand.
Procedure
1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
2. Remove the power riser air baffle. See Figure 62.
Figure 62. Removing the power riser air baffle
3. Label and remove the graphics processing unit (GPU) assemblies. For instructions, see "Removing
the graphics processing unit from the 8335-GCA or 8335-GTA system" on page 30.
4. Label and remove the PCIe adapter cards. For instructions, see "Removing a PCIe adapter from the
system backplane in the 8335-GCA or 8335-GTA" on page 43.
5. Label and remove the memory cards or fillers. For instructions, see "Removing memory risers from
the 8335-GCA or 8335-GTA" on page 36.
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Servicing the IBM Power System S822LC (8335-GCA or 8335-GTA)