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Undetermined Problem
You are here because the diagnostic tests did not identify
which adapter or device failed, the Devices List is incorrect
or the system is inoperative. Follow the procedures below
(do not isolate FRUs that are known to be good).
Check the power supply that was being used at the time of
the failure. (See “Power Systems Checkout” on page 71.)
If the power supply is operating correctly, continue with the
following procedure.
1. Power-off the computer.
2. Remove or disconnect one of the following devices or
adapter. (Do not isolate FRUs that are known to be
good.)
a. Non-IBM devices
b. Modem, PC card, printer, mouse, or other
external devices
c. Battery pack
d. Hard disk drive (removable disk drive)
e. IC DRAM card
f. Any adapter or device
Note: Replacing the hard disk drive, an IC
DRAM card, or any adapter or device,
might cause configuration errors.
3. Power-on the computer.
4. If the problem is not corrected, repeat steps 1 through
3 until you find the failing FRU or until all FRUs have
been removed.
5. If all of the FRUs listed have been removed and the
problem is not corrected, replace the following FRUs:
System board
Processor card
Video card
ThinkPad 700, 700C, 720, 720C (9552)
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