REPLACING PARTS 59
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 “Troubleshooting” on page 102.
• Inspect all cables and internal components as described on pages 103 and 103. If these
inspections do not solve the problem, locate symptoms in the troubleshooting table
beginning on page 109 and perform the suggested actions in the order listed.
• If troubleshooting strategies (checking cables and connections, reinstalling system
software, and so forth) do not solve the problem, and you suspect that the hard disk
drive or the motherboard is faulty, always troubleshoot in the following order:
(Troubleshooting in the wrong order will cause the system to malfunction. In general, it is
highly unlikely that both the hard disk drive and the motherboard are defective; therefore,
avoid replacing both to solve one problem.)
– First, replace the hard disk drive and install system software.
Always replace a faulty hard disk drive with a new hard disk drive. Transferring a hard
disk drive from one E-42B to another is incorrect and strongly discouraged.
– If the problem persists, reinstall the original hard disk drive in the system, and then
replace the motherboard.
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