Removing And Installing Microprocessors Or Cpu Thermal Dummies; Removing The Cpu Thermal Dummy; Removing A Processor - HP server rx4610 Service Manual

Chapter 6
Removing and Installing Microprocessors or CPU Thermal
Dummies
The HP Server may have from two to four processors. Each processor is paired with an associated power
pod. If your server has two processors, they must both reside on the top half of the Processor/Memory
Complex. In this case, the bottom half of the complex contains CPU Thermal Dummies.
CAUTION

Removing the CPU Thermal Dummy

CPU thermal dummies must be installed where a processor is absent to properly direct cooling airflow.
Therefore, the CPU thermal dummy must be removed before installing an additional processor.
Complete the following procedure to remove the CPU thermal dummy:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the Processor/Memory Complex.
3. Orient the complex such that you have access to the surface from which you are removing
processors or CPU thermal dummies.
4. Loosen the four captive screws that secure the triple-beam to the sides of the
Processor/Memory Complex.
5. Remove the sheet metal baffle located to the front of the processors or CPU thermal dummies
in the Processor/Memory Complex. To remove the baffle, press the flexible retaining tabs in as
you slide the baffle out. You need this sheet metal baffle out of the way to access some of the
captive screws in the next step.
6. Loosen the captive screws in the top of the triple-beam and lift it up and away from the
Processor/Memory Complex.
7. Lift the blanks out of the complex.

Removing a Processor

Use this procedure to remove a processor and its heatsink. The heatsink is attached to the back of the
processor. If a processor is not replaced, a CPU thermal dummy must fill the slot to ensure proper cooling of
the unit.
CAUTION
To remove an existing processor, complete the following procedure:
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove the Processor/Memory Complex.
3. Orient the complex such that you have access to the surface from which you are removing
processors.
4. Remove the sheet metal baffle located at the front of the processors or CPU thermal dummies
in the Processor/Memory Complex. To remove the baffle, press the flexible retaining tabs in as
If a processor slot does not have a processor installed, it must have a CPU Thermal
Dummy installed to direct cooling air flow properly.
Always wear a wrist-strap and use a static-dissipating work surface connected to the
chassis when handling components. Ensure the metal of the wrist strap contacts
your skin.
Before you touch the processor to remove it, touch a grounded unpainted metal
surface on the HP Server to discharge static electricity.
Replacing Parts
106