Toshiba Satellite M640 Maintenance Manual page 104

3 Tests and Diagnostics
If an error is detected and a test fails, the following message displays:
Whether test result are "PASS" or "FAIL", Then press any key for next actions – Will go back
main menu and copying test log file onto diskette is necessary.
Satellite/Satellite Pro M600/M640/M645/M647 Series, Dynabook TX/AX Series 6