2.4 System Board Troubleshooting

2 Troubleshooting Procedures

Table 2-4 Debug port (Boot mode) error status (6/8)

D port status

Inspection items

Details

 

 

 

(F109h)

 

Configuration

 

 

 

 

 

Saving of VGA configuration result

 

 

 

F10Ah

Task generation for waiting

 

 

PCI_CONFIGURATION

 

 

completion

 

 

 

 

 

Initialization of H/W needed

HDD initialization sequence start

 

after PCI configuration

 

 

 

 

 

Enabling power off

 

 

 

 

 

Output code generation

 

 

 

 

F10Bh

FIRST_64KB_CHECK

(Check of first 64KB memory)

 

 

 

F10Ch

INIT_INT_VECTOR

(Initialization of vectors)

 

 

 

F10Dh

INIT_NDP

(Initialization of NDP)

 

 

 

F10Eh

INIT_SYSTEM

Storing of CMOS error status to

 

(Initialization of system)

IRT_ERR_STS_BUF

 

 

Timer initialization start

 

 

EC initialization & Reading of battery

 

 

information

 

 

Update of system BIOS (Update of EDID

 

 

information for LCD)

F10Fh

INIT_DISPLAY

Waiting for VGA chip initialization completion,

VGA BIOS initialization

 

 

 

 

 

 

 

Waiting for VGA power ON

 

 

 

 

 

Waiting for Display access completion

 

 

 

F110h

Calling VGA BIOS

 

 

 

 

F112h

DISP_LOGO

Displaying logo

 

 

 

F113h

SYS_MEM_CHECK

Check of convention memory in the protected

 

 

mode (boot)

F114h

EXT_MEM_CHECK

Check of exception in the protected mode

 

 

(boot)

 

 

 

F115h

Check of exception in the

DPORT= F116H when error

 

protected mode

 

 

 

 

 

INIT_SYS_MEM

Initialization of conventional memory (Reboot)

 

 

 

2-26

[CONFIDENTIAL]

QOSMIO G20 Maintenance Manual (960-511)

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Toshiba QOSMIO G20 manual Debug port Boot mode error status 6/8, Pciconfiguration