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Diagnostics using PC-Doctor for DOS
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 “ThinkPad X301” on page 47.
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.
To enter BIOS Setup Utility, do as follows:
1. Turn on the computer.
2. When the ThinkPad logo comes up, immediately press F1 to enter the BIOS
Setup Utility.
Note:
If a supervisor password has been set by the customer, BIOS Setup Utility
menu appears after the password is entered. You can start the utility by pressing
Enter instead of entering the supervisor password; however, you cannot change the
parameters that are protected by the supervisor password.
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 Configuration utility for DOS. The utility is available on the following
Web site: http://www.lenovo.com/support
Testing the computer
To run the test, do as follows:
Note: In the following procedure, you can select an item not only with the arrow
keys, but also with the TrackPoint
®
pointer. Instead of pressing Enter, click the left
button.
1. Insert the PC-Doctor disk into the diskette drive; then power on the computer.
If the computer cannot be powered on, go to “Power system checkout” on page
29, and check the power sources.
If an error code appears, go to “Symptom-to-FRU index” on page 39.
On the first screen, select the model and press Enter. Follow the instructions on
the screen.
2. The main panel of PC-Doctor appears.
3. Select Diagnostics with the arrow keys, and press Enter.
A pull-down menu appears. (Its exact form depends on the model.)
Note:
PC-Doctor
for DOS is available at following Web site: http://www.lenovo.com/
support
To create the PC-Doctor diagnostic diskette, follow the instruction on the Web
site.
26 ThinkPad X301 Hardware Maintenance Manual