HP OMNIBOOK 4100 Manuel d'utilisateur télécharger pdf (Page 43)

2-20 Removal and Replacement HP OmniBook 4100/4150

Removal Procedure

1. Unplug the ac adapter, if present, and remove the battery.

2. Remove these additional assemblies:

• Floppy module or other module (page 2-3).

• Hard disk drive (page 2-5).

• Keyboard (page 2-9).

3. For an OmniBook that has a 2-screw CPU top plate, remove the screw from the heatsink cover

and lift it off the heatpipe. (The figure on page 2-26 shows these and other parts.)

4. Remove the screws holding the CPU top plate (see the picture on page 4-8 for details):

• For an OmniBook 4150B, remove the five screws from the heatsink/top plate assembly—one

at the front-right corner (M2×12mm), two at the left side (M2 with spring), and two at the

diagonal corners of processor (M2×3.5mm).

• For an OmniBook 4150† with a 5-screw CPU top plate, remove the five screws—one at the

heatsink (M2×5mm), two at the corners of the CPU housing (M2×14mm), and two at

diagonal corners of the CPU module below (M2×3.5mm). (Do not remove the two small

screws above the middle of the CPU.)

• For an OmniBook with a 2-screw CPU top plate, remove the two screws at the corners

(M2×14mm).

5. For an OmniBook 4150B, lift off the heatsink/top plate.

For an OmniBook 4150† with a 5-screw CPU top plate, lift off the top plate, carefully detaching

the heatpipe end tab from the slot in the fan cover.

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HP OMNIBOOK 4100 Manuel d'utilisateur Page 43