Toshiba QOSMIO G20 Debug port Resume mode error status 1/4, LED Status Test item Contents Resume

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-6 Debug port (Resume mode) error status (1/4)

LED Status	Test item	Contents
Resume
F100h	Refer to IRT
F101h	Refer to IRT
F102h	Refer to IRT
F103h	Refer to IRT
	Clears flag for SMI control.
	Renewal of Resume counter
F121h	Checks the WakeUp factors.
	Rewriting of SMRAM BASE
F122h
	Initializing devices necessary for	Initializing of PIT
	initialization before initializing PCI bus
		Initializing of PIT channel 0 (Sets the interval of
		timer interruption to 55ms)
		Initializing of PIT channel 2 (Sets the sound
		generator frequency to 664Hz)
		Measuring CPU clock
		Permission of SMI other than auto-off function
		Control of excess of rated input power
		Control of battery discharging current (1CmA)
		Control of excess of rated current of AC adapter
		Dividing for measuring of IRT time
		Setting to clock generator
		Check of parameter block A
		Initializing of CPU
		Updating micro-code
		Judge of CPU type
		Check of supporting Geyserville
		Sets the CPU clock to High
		Setting of Graphics Aperture Size
	Recovery of PIC register
	Initialization 2 of devices necessary for	AC'97 control
	initialization before initializing PCI bus
		Initializing of temperature control information
		Initializing of KBC
		VGA display-off and Reset control

2-32 [CONFIDENTIAL] QOSMIO G20 Maintenance Manual (960-511)