HP Book 900 manual Removing the CPU Module Reassembly Notes

Caution: OmniBook 900B

Follow these precautions to prevent damage to the CPU connector:

∙Use only a 4.0-4.5 mm flat-blade screwdriver to release the CPU.

∙Use only enough force to lock the CPU module. The CPU connector may be damaged if too much force is used.

To reinstall the CPU assembly, see the precautions under “Reassembly Notes.”

5.For the OmniBook 900B, insert the flat-blade screwdriver into the release slot of the CPU socket, and then turn the screwdriver counter-clockwise (approximately 10 degrees) until the CPU module is free.

Note: Do not put screws in these two holes.

Screw, M2×5mm (6)

Spring (insert

under heatpipe)

Heatsink (OmniBook 900B)

CPU connector

Screw, M2×5mm (8)

Heatsink (OmniBook 900†)

CPU module

Note:OmniBook 900† CPU module and motherboard

shown. Details differ for OmniBook 900B.

Figure 2-8. Removing the CPU Module

Reassembly Notes

Caution: OmniBook 900†

Follow these precautions while installing the CPU module to prevent damage to the CPU connector:

∙Place the CPU module on the connector carefully. Use the screw holes as a guide.

∙Place your fingers on top of the CPU module above the left and right ends of the connector. Do not push at other locations.

∙Press firmly at the left end while holding down the right—until the left engages. Then press down the right down while holding the left.

∙Press firmly until the CPU module seats in the connector—you should feel a slight click. Install or replace thermal pads on the heatsink that are missing or damaged.

Do not install screws in the middle area of the heatsink. The only screws in the CPU area are at the four corners of the CPU module.

HP OmniBook 900 Removal and Replacement 2-15