Toshiba Satellite M40 - Page 109

3.5 System Test 3 Diagnostic Programs
Satellite M40/M45 TECRA A4 Dynabook Vx/4 Maintenance
Manual 35
2. Chipset Fan Speed Test
This test item is to check whether Chipset Fan exists or not. If it exists, the
test will check the speed of Chipset Fan at the status of Power On or Power
Off.