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2-26 Removal and Replacement HP OmniBook 4100/4150
Figure 2-12. Removing the Motherboard
Screw, M2×14mm (2)*
Screw, M2×3.5mm or*
M3×4mm
CPU with top plate, bottom plate*
LVDS PCA
VGA PCA
Heatsink cover*
Heatsink (finned)*
DC-DC PCA
Audio jack PCA
VGA standoff (2)
Air vent cover
Left frame
Screw, M2.5×5mm
IR PCA
Audio jack cover
Right frame
Screw, M2.5×5mm
RAM/BIOS
cover
Screw, M2×3.5mm
(OB 4100) or
M3×4mm
(OB 4150)
Heatpipe*
(part of CPU top plate)
Heat exchange cover
(For OB 4150B this is part
of fan, held by two screws)
Motherboard
Fan
Screw, M2.5×16mm
Screw, M2.5×5mm
Note:
For an OmniBook 4150† with a 5-screw CPU top
plate or an OmniBook 4150B, you must remove
the top plate before removing the CPU
assembly—see the steps on page 2-19. The
CPU and heatsink parts (
*
) differ from those
shown below.