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About this task
As part of the system processor module replacement, the cold plate is removed. Each module must have
thermal interface material (TIM) between the module and the cold plate. If the TIM is damaged, it must
be replaced. Ensure that you have spare system processor TIMs available before proceeding.
Procedure
1. Attach the electrostatic discharge (ESD) wrist strap.
The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is
completed, and if applicable, until the service access cover is replaced.
Attention:
• Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack,
or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from
damaging your hardware.
• When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is
used for static control. It does not increase or decrease your risk of receiving electric shock
when using or working on electrical equipment.
• If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging
and installing or replacing hardware, touch an unpainted metal surface of the system for a
minimum of 5 seconds. If at any point in this service process you move away from the
system, it is important to again discharge yourself by touching an unpainted metal surface for
at least 5 seconds before you continue with the service process.
2. Open the packaging of the new system processor module, and place the cover upside down next to the
tray, as shown in Figure 135 on page 151. The cover is used for the system processor module that you
are replacing.
Figure 135. Opening the system processor module packaging
Removing and replacing parts in the 8335-GTW or 8335-GTX 151
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