Toshiba Satellite L670 Series Maintenance Manual page 101

3 Tests and Diagnostics
After Press "Y", computer will auto test FAN RPM (2000-6000), and it will
auto check.
The screen will show below picture, if FAN RPM check is OK;
If FAN RPM check is NG, it will show as below:
Satellite L670/L675 / Pro L670 Series Maintenance Manual
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