You need to remove a microprocessor before you replace it or move it to a replacement
main board.
Before you begin
DANGER
Multiple power cords. The product might be equipped with multiple
power cords. To remove all hazardous voltages, disconnect all power cords. (L003)
About this task
This procedure is based on the following assumptions.
You are a trained IBM® service support
representative (SSR).
You removed all power from the node.
You removed the node from the rack.
You removed the top covers from the node.
You removed PCI express riser assemblies 1 and 2.
You removed the air baffle.
Attention: Removing the heat sink from the microprocessor also removes the even
distribution of the thermal grease and requires removing the thermal grease.
Procedure
Undo the heat sink retention screws, as shown in Figure 1.
Figure 1. Removing the heat sink
Lift the heat sink out of the chassis. Place the heat sink (with the thermal grease side up) on
a clean, flat surface.
Use an alcohol wipe to remove most of the grease from the top of the microprocessor.
Open the microprocessor socket release levers and retainer, as shown in Figure 2.
Figure 2. Opening the release levers
1 Microprocessor release lever
2 Microprocessor release lever
3 Microprocessor retainer
Open the first release lever ( 1 ) on the microprocessor
socket.
Open the second release lever ( 2 ) on the microprocessor
socket.
Open the microprocessor retainer ( 3 ).
Attention: Do not touch the microprocessor contacts. Contaminants on the microprocessor
contacts, such as oil from your skin, can cause connection failures between the contacts and the
socket.
Hold the microprocessor by the edge and carefully lift it out of the socket.
Note: The pins on the socket are fragile. Any damage to the pins might require replacing the system
board.
If you are instructed to return the microprocessor, follow all packaging instructions. Use any
packaging materials for shipping that are supplied to you.
