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Nec express5800 tm800 nl Manual

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User Guide
126
www.nec-computers.com
Upgrading Microprocessor
Your system is fitted with a processor installed in a socket LGA 775.
Removing a Processor
1. Remove the right side door. See “Removing the Right Side Door” on page 114.
1. Lay the server on its left side (this is not mandatory, but it will make the
process easier to follow).
2. Disconnect the fan cable(s) from the processor fan connector(s) on the
motherboard.
3. Remove the processor heatsink:
- Remove the four screws fastening the heatsink to the motherboard.
- Remove the heatsink manually using a gentle rocking motion.
Note: To reassemble the heatsink:
■ Reset the fastener’s caps to their original position.
■ Re-attach the cable to the cable management clips.
4. Open the processor socket:
- Use your right thumb to push down and outwards the lever in order to dis-
engage it from the retention tab.
Caution
If you do not follow scrupulously these instructions, the lever
can bounce back and cause bend contacts.
- Rotate the load lever to its fully open position at approximately 135°.
- Rotate the load lever to its fully open position at approximately 100°.
5. Grasp the processor (use your index to hold the load plate side, and your thumb
to hold the lever side).
6. Lift the processor straight and away.
7. Set the processor immediately in its protective cover.
- Hold the CPU by three of its corners.
- The chamber of the protective cover should match the connection 1 on the
CPU.
- The rentention tabs on the cover and the processor contacts should point
each other.
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