Checkout Guide; Testing The Computer - IBM ThinkPad R40 Hardware Maintenance Manual

Checkout guide

Checkout guide
Use the following procedures as a guide in identifying and
correcting problem s with the ThinkPad computer.
N ote: The diagnostic tests are intended to test only IBM
products. The use of non-IBM products, prototype
cards, or modified options can lead to false
indications of errors and invalid system responses.
1. Identify the failing sym ptom s in as much detail as
possible.
2. Verify the sym ptom s. Try to re-create the failure by
running the diagnostic test or by repeating the
operation.

Testing the computer

The ThinkPad com puter has a test program called
PC-Doctor® 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 m odel-unique functions, refer to
" Product overview " on page 45.
For some possible configurations of the computer,
PC-Doctor m ight not run correctly. To avoid this problem,
you need to initialize the com puter setup by use of the IBM
BIOS Setup Utility before you run PC-Doctor. On the IBM
BIOS Setup Utility screen, press F9, Enter, F10, and then
Enter.
N ote: When you initialize the com puter 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 com puter 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 Plus slot of the computer.
To run the test, do as follows:
N ote: In the following procedure, you can select an item
not only with the arrow keys, but also with the
TrackPoint. 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 com puter cannot be powered on, go to " Power
system checkout" on page 39, and check the power
sources.
3 6 ThinkPad R40