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Diagnostics using PC-Doctor for DOS
The Lenovo 3000 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 “Lenovo 3000 N500” on page 43.
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 Configuration utility for DOS. The utility is available on the following
Web site: http://www.lenovo.com/support
Creating the PC-Doctor diagnostics diskette
To create the PC-Doctor disk from the Rescue and Recovery
®
workspace, do as
follows:
1. Enter the Rescue and Recovery workspace by pressing the Lenovo Care
SM
button during POST.
2. When theRescue and Recovery workspace finishes loading, click Diagnostic
Diskette.
3. Authenticating the digital signature takes about 15 seconds; then the Lenovo
3000 computer will reboot into PC-DOS.
4. A batch file automatically starts up to prompt you through the process of
creating diskettes. You are notified of how many diskettes you will need.
a. You are prompted to insert each diskette in sequence.
b. Typically, all you need to do is to press the Enter key for the floppy drive;
the system then formats and creates the diskette.
c. Each diskette is erased and formatted with the PC-Doctor for DOS boot
image.
5.
Once all the diskettes have been created, the Lenovo 3000 computer will reboot.
The user is asked to remove all diskettes from the drive, or to insert the first
diskette created if it is desired to run the diagnostics.
Testing the computer
To run the test, do as follows:
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 36.
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.)
26 Lenovo 3000 N500 Hardware Maintenance Manual