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Toshiba PORTEGE M400 User Manual

Page 76

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2 Troubleshooting

2.4 System board Troubleshooting

2-28

[CONFIDENTIAL]

PORTEGE M400 Maintenance Manual (960-541)

Table 2-3 Debug port (Boot mode) error status (8/10)

D port
status

Inspection items

Details

F11Ah

INIT_DMAC (boot mode)

Initialization of DMAC

F11Bh CHECK_SIO

(for

models

supporting SIO)

Check of Serial port existence

F11Dh

Diagnostic Test

In Models supporting Diagnostic Mode, it is enabled.

F11Eh BOOT_PASSWORD

(password check)

(In Reboot Mode)
Waiting for HDD initialization completion
Check of key input during IRT (waiting for
KBC initialization completion)
ATA priority initialization

(In Boot Mode)
BM loading process (for models supporting
fingerprint authentication)
Initialization of BM (for models supporting
fingerprint authentication)
Check of key input during IRT (waiting for KBC
initialization completion)
Input of password
I/O LOCK process (for models supporting
I/O lock)
TPM initialization (models supporting TPM)

F11Fh

EX_IO_ROM_CHECK

Check of option I/O ROM

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 just before booting

Rewriting of memory map data of INT15h E820h
function

Waiting for AC-Link initialization completion

Renewal of table for DMI

Copying ACPI table to uppermost of extension
memory

F120h PRE_BOOT_SETUP

Waiting for completion of BIOS rewriting of PSC
version