Toshiba Satellite A40 Maintenance Manual - Page 134
System Test, Enter, Shift + S
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3 Tests and Diagnostics 3.4 System Test 3.4 System Test To execute the System Test select 1 from the DIAGNOSTIC TEST MENU, press Enter and follow the directions on the screen. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 ROM checksum This subtest executes a checksum test of the BIOS ROM (range: F0000h to FFFFFh, 64KB) on the System Board. Subtest 02 Geyserville If the CPU supports Gerserville (SpeedStep), this Subtest checks that the CPU operating clock speed can be changed. Subtest 04 Fan ON/OFF This subtest turns on/off the fan motor by force with Fan ON/OFF commands and displays the max speed of the fan. The following message will appear. Make sure the fan does not rotate and press Enter. Test Fan OFF Start Press [Enter] KEY The following message will appear. Make sure the fan rotates at max speed and press Enter. Test Fan MAX Start Press [Enter] KEY The following message will appear and display the max speed of the fan. Test Fan MAX Start *** CPU FAN Speed = XXXX rpm *** 2nd FAN Speed = XXXX rpm Press [Shift] + [S] KEY To exit this subtest and return to the SYSTEM test menu, press Shift + S. Subtest 06 Quick charge 3-10 Satellite A40 Maintenance Manual (960-458)
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