Replacing The Motherboard - EFI E-43A Installation And Service Manual

R
EPLACING PARTS
T
O REMOVE THE MOTHERBOARD
This procedure assumes that you have already performed the procedure
N :
OTE
boards and cables from the motherboard" on page
1 Remove the hard disk drive bracket, with hard disk drive attached (see
Remove the screw that attaches the bracket to the shelf. Removing the hard disk drive and
hard disk drive bracket provides the clearance necessary for removing the motherboard. You
must also detach the hard disk drive power cable to remove the hard disk drive.
2 Remove all the mounting screws securing the motherboard to the chassis (for screw locations,
see page 57).
3 Remove the motherboard from the chassis.
Lift the edge of the motherboard. Make sure that the motherboard connectors clear the
chassis while you lift it out of the chassis. Do not touch the contacts and avoid using excessive
force.
During service, avoid using excessive force and always place the motherboard on a grounded,
non-metallic, static-free surface. Never allow any metal to touch the solder contacts on the
underside of the motherboard, especially beneath the battery socket. Improper handling can
short-circuit and permanently damage the motherboard.

Replacing the motherboard

Follow the procedures in this section to replace the motherboard. Failure to follow the
instructions in this section may corrupt the system (not easily repaired in the field) or result in
an incomplete installation.
Troubleshooting cautions
• Before deciding to install a new motherboard, consult
• Inspect all cables and internal components as described on pages
connections" on page 99
inspections do not solve the problem, locate symptoms in the troubleshooting table
beginning on
and "Checking internal components" on page
page 104 and perform the suggested actions in the order listed.
58.
page
"Troubleshooting" on page
"Checking external
59
"To remove
76).
98.
99. If these