ThinkPad R30 and R31 Hardware
Important Service Information
Diskette fixes are customer-installable. The diskette
fixes are posted on the IBM support site
Advise customers to contact the IBM
at 800-772-2227 if they need assistance in obtaining
or installing any diskette fixes.
Customers in Canada should call IBM
at 800-565-3344 for assistance or download
FRU Replacement Strategy
Before Replacing Parts
Ensure that all diskette fixes are installed prior to
replacing any FRUs listed in this manual.
Use the following strategy to prevent unnecessary FRU
replacement and service expense:
v If you are instructed to replace a FRU and that does
not correct the problem, reinstall the original FRU
before you continue.
v Some computers have both a processor board and a
system board. If you are instructed to replace either the
processor board or the system board, and the first board
that you replaced does not correct the problem, reinstall
the original board, then replace the other (processor or
v If an adapter or device consists of more than one FRU,
an error code may be caused by any of the FRUs.
Before replacing the adapter or device, remove the
FRUs, one by one, to see if the symptoms change.
Replace only the FRU that changed the symptoms.
default settings) may exist on the computer you are
servicing. Running Automatic Configuration may alter those
settings. Note the current configuration settings (using the
View Configuration option) and verify that the settings are
in place when service is complete.
A customized setup configuration (other than