Toshiba 960-498 manual Debug port Boot mode error status 5/9, VGABUS=0

2.4 System Board Troubleshooting 2 Troubleshooting Procedures

Table 2-4 Debug port (Boot mode) error status (5/9)

D port status Inspection items Details

(F105h)		CPU clock measurement
		Check of parameter block A
		Permission of SMI except auto-off function
		Control of excess of rated input power
		Battery discharge current control (1CmA)
		AC adapter rated over current control
		Dividing procedures for time measuring by IRT
		Setting for clock generator
		CPU Initialization
		Micro code update
		Judging of CPU type
		Geyserville support check
		Setting of CPU clock to “high"
		Graphics Aperture Size setting (except when
		VGA_BUS=0)
F106h	Saving memory configuration to
	buffer
	Reading of EC version
	Update of flash ROM type
	Judging of destination (Japan or
	except Japan) based on DMI data
	CMOS default setting check	Sets default setting if bad battery or bad
		checksum (ROM, CMOS) is detected)
	ACPI table initialization (for
	execution of option ROM)
	Initialization of devices which	AC’97 control
	need initialization before PCI bus
		Initialization of temperature control information
	initialization
		KBC initialization
		VGA display off, Reset control
		Sound initialization
		PC multi-box status acquisition (for models
		supporting Selectable bay)
		HC initialization, USB device connection
		recognition and initialization
		Control of built-in LAN permission/prohibition
	PIC initialization
	PIC test
	Password Initialization

2-24 QOSMIO F10 Maintenance Manual (960-498)