Toshiba PORTEGE M300 Maintenance Manual page 77

2.4 System Board Troubleshooting
D port status
(F11Dh)
F11Fh
FFFFh
2-28
Table 2-4 Debug port LED status (7/7)
Inspection items
2 Troubleshooting Procedures
Details
Rewriting of memory map data of INT15h E820h
function
Update DMI table
Copy of ACPI table to top of expansion memory
Waiting for writing of PSC version to BIOS
completion
Waiting for clock generator setting completion
(Stop D port = 1EH when error)
Cancel of NMI Mask
TIT check sum
Clear of the IRT flag of Runtime side
Update of check sum of Runtime side
Upgrade check for CPU, HDD
Prohibition of unused PC cards
HW initialization before Boot, Waiting for
initialization completion
Setting of battery save mode
Setting of date
Waiting for completion of AC-Link initialization
Update of DMI Wakeup factor, Update of SM-
BIOS structure table
PCI device configuration space close
Cache control
CPU process
Update of parameter block A
Specify CPU clock in SETUP
Waiting for HDD motor-off which id disabled
PRE_BOOT_SETUP process
Clear of PWRBTN_STS
Set Power Button to Enable
PORTEGE M300 Maintenance Manual (960-504)