Acer G901 Manuel D’Utilisation

Page de 244
 3 Hardware configuration
58
To install the mainboard
1
With the rear of the electronics bay closest to you and the 
mainboard oriented so that the I/O connectors line up with the 
cutout in the back left of the chassis (Figure 23), lower the right 
end of the mainboard into the electronics bay and slip the board 
edge into the slots of the foam panel (Figure 23, B).
2
Lower the other end of the mainboard to the floor of the 
electronics bay and slide it toward the back of the chassis until:
a
The I/O connectors fit all of the way into the I/O connector 
openings.
b
The six mounting holes on the mainboard (Figure 23, B) are 
aligned with their corresponding threaded standoffs in the 
floor of the electronics bay.
3
Install the processor board mounting brackets and processor-side 
plastic overlay as follows:
a
Align the processor board mounting bracket for the center of 
the mainboard with the three mounting holes.  Insert a screw 
through each of the holes and partially thread the screws into 
the standoffs.
b
Align the other mounting bracket along the edge of the 
board.  Align the plastic overlay with the bracket and the two 
plastic studs.  Insert a screw through each of the holes in the 
overlay and mounting bracket and partially thread the screws 
into the standoffs.
c
Adjust the board position as needed and tighten the six 
screws.
4
Install the plastic protective overlay covering the PCI area of the 
board as follows:
a
At the side of the electronics bay where the edge of the 
mainboard is inserted into the foam, place the two slots in the 
overlay over the hooked tabs (Figure 22, C on page 56).
b
Slide the overlay toward the rear of the chassis to hook the 
tabs in the slots.
c
Carefully fit the overlay around the mainboard connectors 
and down against the board.
d
Tighten the captive screw that holds the overlay in place.
5
Install the front retention mechanism for the PCI add-in cards on 
the front wall of the electronics bay (Figure 22 on page 56).
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