Toshiba PORTEGE M400 - Manual (Page 140)

3 Tests and Diagnostics 3.7 System Test
3-22 [CONFIDENTIAL] PORTEGE M400 Maintenance Manual (960-541)
3.7 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 Fan ON/OFF
This subtest turns on/off the fan motor by force with Fan ON/OFF commands.
The following message will appear.
Fan number select (1;FAN#1(CPU), 2;FAN#2(GPU), 0; FAN#1&#2)?
To check the CPU fan, press 1 and Enter.
To check the GPU fan, press 2 and Enter.
To check both CPU fan and GPU fan, press 0 and Enter.
The following message will appear.
*** Test Fan Revolution 0000RPM start
Make sure the fan does not rotate, then press Enter.
The following message will appear.
*** Test Fan Revolution Low speed Start
Make sure the fan rotates at low speed, then press Enter.
The following message will appear.
*** Test Fan Revolution High speed Start
Make sure the fan rotates at high speed, then press Enter.
After a while, the fan rotating will stop.
Subtest 03 Geyserville
If the CPU supports Gerserville (SpeedStep), this Subtest checks that the CPU
operating clock speed can be changed.
Subtest 04 Quick charge