Replacing The Motherboard - EFI E-85 Installation And Service Manual

To remove the motherboard
Note: This procedure assumes that you have removed the printer interface board and cables from the motherboard, as
described in "To remove motherboard components from the motherboard"
1 Remove all screws securing the motherboard to the chassis (for screw locations, see
2 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.
Important: 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.
3 If you are replacing the motherboard with a new motherboard, remove the following from the old motherboard:
DIMMs (see page
•
• CPUs (see page 69)

Replacing the motherboard

Important: Follow the procedures in this section to replace the motherboard. Failure to follow these procedures can
cause a corrupted system (not easily repaired in the field) or an incomplete installation.
If you are installing a new motherboard:
• Transfer the DIMMs and CPUs from the old motherboard. Spare motherboards ship with replacement thermal
compound for use when transferring the CPUs.
Make sure that the new motherboard solves the problem that you are troubleshooting before you transfer options to the
•
new motherboard. Transferring options permanently customizes the new motherboard so that it cannot be returned to
inventory and cannot be installed in another E-85. If the new motherboard does not solve the problem, do not transfer
options. Return the new motherboard and unused motherboard replacement dongle to inventory.
• Do not reinstall system software. Reinstalling system software is not necessary when installing a new motherboard and
can result in an error if done before transferring options.
BIOS chips are not interchangeable. Do not transfer the BIOS chip from the old motherboard onto the new
•
motherboard. Doing so can damage the E-85.
Do not install a new hard disk drive at the same time that you install a new motherboard.
•
It is unlikely that both the hard disk drive and the motherboard are defective, therefore, avoid replacing both to solve
one problem. If troubleshooting strategies (checking cables and connections, etc.) do not resolve the problem and you
suspect either the hard disk drive or the motherboard is at fault, use the following order: replace the hard disk drive;
install system software; verify the problem still exists; then move on to other procedures, such as replacing the
motherboard. Otherwise, you may need to return the E-85.
66)
Installation and Service Guide: Color Controller E-85
on page 58.
page
Replacing parts
58).
59