User`s guide

User Guide
152
www.bull.com
Upgrading Microprocessor
Your system is fitted with a processor installed in a socket LGA 775.
Removing a Processor
1. Open the server chassis.
2. If your chassis is a tower chassis, lay the unit on its left side, the instructions
will be easier to follow.
3. Disconnect the fan cable(s) from the processor fan connector(s) on the
motherboard.
4. 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.
5. 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°.
Figure 97: Opening the processor socket