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Use the following procedures as a guide in identifying and correcting problems
with the ThinkPad computer.
Note: The diagnostic tests are intended to test only ThinkPad products. The use of
non-ThinkPad products, prototype cards, or modified options can lead to
false indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as possible.
2. Verify the symptoms. Try to re-create the failure by running the diagnostic test
or by repeating the operation.
Testing the computer
The ThinkPad computer has a test program called PC-Doctor
®
for DOS (hereafter
called PC-Doctor). You can detect errors by running the diagnostics test included in
PC-Doctor. This section is an overview of the procedure. For details that depend
on model-unique functions, refer to “Product overview” on page 38.
For some possible configurations of the computer, PC-Doctor might not run
correctly. To avoid this problem, you need to initialize the computer setup by use
of the BIOS Setup Utility before you run PC-Doctor. On the BIOS Setup Utility
screen, press F9, Enter, F10, and then Enter.
Note: When you initialize the computer configuration, some devices are disabled,
such as the serial port. If you test one of these devices, you will need to
enable it by using PS2.EXE.
PC-Doctor cannot be used to test a device that is in the docking station, even if the
computer supports the docking station. To test a USB device, connect it to the USB
connector of the computer. To test the Ultrabay
™
device, install it in the Ultrabay
Slim slot of the computer.
Checkout guide
General descriptions 31