Testing The Computer - Lenovo ThinkPad L412 Hardware Maintenance Manual

Testing the computer

Note: The PC-Doctor diagnostic CD does not support any optical drives connected
through USB devices or any others. It supports only the internal optical drive of
the ThinkPad Notebook.
To run the test, do as follows:
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ThinkPad SL410, L410, L412, SL510, L510, and L512 Hardware Maintenance Manual
1. Turn off the computer.
2. Make sure that the internal optical drive that is supported as a startup device
is attached to the computer you are servicing.
3. Turn on the computer.
If the computer cannot be powered on, go to "Power system checkout" on
page 51, and check the power sources.
If an error code appears, go to "Symptom-to-FRU index" on page 62.
4. When the ThinkPad logo comes up, immediately press F12 to enter the Boot
Menu.
5. Insert the PC-Doctor CD into the internal optical drive.
6. Press cursor keys to select ATAPI CDx (x: 0, 1, ...) and then press Enter.
7. Follow the instructions on the screen.
8. The main panel of PC-Doctor appears.
9. Select Diagnostics with the arrow keys, and press Enter.
Note: 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.
A pull-down menu appears. (Its exact form depends on the model.)
Note: PC-Doctor menu does not mean the formal support device list. Some
unsupported device names may appear in the PC-Doctor menu.