Preparing to remove the system backplane from the 8335-GTW
To prepare the system to remove a system backplane, complete the steps in this procedure.
Before you begin
Before you begin replacing the system backplane, record the system serial number and machine model type. After you replace the system backplane, you must set the system serial number and machine model type in the system backplane.
About this task
As part of the system backplane replacement, the cold plates are removed from the system processor modules and GPUs. Each module and GPU must have thermal interface material (TIM) between the module, the GPU, and the cold plate. If the processor TIM is damaged, it must be replaced. GPU TIMs must always be replaced. Ensure that you have spare TIMs available before proceeding.
Procedure
Power off the system and place it in the service position.