2 Troubleshooting Procedures

2.4 System Board Troubleshooting

Table 2-4 Debug port (Boot mode) error status (7/8)

D port status

Inspection items

Details

 

 

 

F117h

CHK_DMA_PAGE

Check of DMA Page Register (Boot)

 

 

 

F118h

CHECK_DMAC

Check of DMAC (Boot)

 

 

(In the case of “Reboot”)

F119h

INIT_DMAC

 

Initialization of DMAC (Boot)

Waiting for HDD initialization completion

 

 

Check of key input during IRT (waiting for KBC

 

 

initialization completion)

 

 

I/O LOCK process

 

 

ATA priority initialization

F11Ch

BOOT_PASSWORD

(In the case of “Reboot”)

 

(password check)

Waiting for HDD initialization

 

 

Check of key input during IRT (waiting for KBC

 

 

initialization completion)

 

 

ATA priority initialization

 

 

(In the case of “Boot”)

 

 

Check of key input during IRT (waiting for KBC

 

 

initialization completion)

 

 

Input of password

 

 

(Waiting for completion of initializing HDD)

F11Dh

EX_IO_ROM_CHECK

Check of option I/O ROM

 

 

 

F11Eh

PRE_BOOT_SETUP

Saving of value in 40:00h

 

 

(for SIO saving/restoring)

 

 

Setting of font address for resume password

 

 

 

 

 

Setting of repeat parameter for USB KB

 

 

 

 

 

Final check of key input during IRT

 

 

 

 

 

Storing of T_SHADOW_RAM_SIZE

 

 

 

 

 

Update of system resource before boot

 

 

 

 

 

Rewriting of memory map data of INT15h E820h

 

 

function

 

 

 

 

 

Waiting for AC-Link initialization completion

 

 

 

 

 

Renewal table for DMI

 

 

 

 

 

Copying ACPI table to uppermost of extension memory

 

 

 

 

 

Waiting for completion of BIOS rewriting of PSC

 

 

version

 

 

 

 

 

Waiting for completion of setting clock generator

 

 

When error occurred, halts at DPORT=F11FH

 

 

 

 

 

Cancel of NMI Mask

 

 

 

 

 

TIT check sum

 

 

 

QOSMIO G20 Maintenance Manual (960-511)

[CONFIDENTIAL]

2-27

Page 71
Image 71
Toshiba QOSMIO G20 manual Debug port Boot mode error status 7/8, Initdmac