HP Workstation x4000 hp workstation x4000 - service handbook - Page 14

Figure 1-3 HP x4000 Service Information Replacing or Upgrading a Processor 8. Remove the two heatsink clips by pressing the release lever on the clips. Then lift off the heatsink. There is a thermal interface material between the heatsink and the processor. This may cause the processor to stick to the heatsink. Removing a Processor Step 8 Step 10 9. Remove the thermal interface material from the heatsink and discard it. You can leave any residue that remains on the heatsink. This does not impair the heat transfer. 10. Open the Zero Insertion Force (ZIF) lever, located at the side of the processor socket, until it is in the vertical position (depending on the socket design, the handle may need to go past vertical), then carefully lift out the processor. To avoid bending the processor pins, keep the processor perfectly flat when removing it. 11. Store the processor in an anti-static bag (such as the one provided with the replacement processor). 12. If you are permanently removing a second processor, you must update your operating system (see page 16). You should also store the heatsink and clips in a safe place. Installing a Processor To install a processor: 1. Turn off the display and shut down the Workstation. Disconnect all power cables and any LAN or telecommunications cables. 2. Remove the Workstation's cover. 3. Place the Workstation on its side for better access. 14 Chapter 1