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2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2-26 PORTEGE A100 Maintenance Manual (960-460)
Table 2-3 D port status (7/7)
D port status Inspection items Details
F11Bh Checking optional I/O ROM EX_IO_ROM_CHECK (Checking optional I/O ROM)
F11Ch Final setting up prior to boot-
up
PRE_BOOT SETUP
Storing the value of 40:00h (for saving/restoring SIO)
Setting up the address of font data for resuming
password
Setting up the parameters for character repeat on a USB
keyboard
Getting keys finally pressed during the IRT
Storing shadow RAM size
Updating system resources information prior to boot-up
Renewing memory mapping data for INT15h E820h
function
Updating a table for DMI
Waiting for the completion of initializing AC-Link
Copying an ACPI table to the top of an expansion
memory
Waiting for the end of writing PSC version on BIOS
Waiting for the end of setting clock generator
When an error is detected, halts in F11DH.
Waiting for the end of serial port initialization
Canceling NMI mask
Examining the checksum of TIT
Clearing IRT running flag for runtime
Update checksum for runtime
Branching to hibernation
Initializing Bluetooth
Checking for targeted maintenance card
Disabling a PC Card that is not being used
Setting WAKEUP status data for ACPI
Initializing HW right before booting and waiting for the
completion
Reporting the DVI connection conditions to VGA
BIOS
Setting up battery safe mode
Setting up date
Waiting for the end of Bluetooth initialization
Updating DMI Wakeup factor and SM-BIOS structure
table
Waiting for the end of AC-Link initialization
Cache control
Updating parameter block A
Setting up the clock speed of the CPU to the appointed
value by the Setup
Waiting for the motor off of a disabled HDD
Concluding FDD information
Clearing power button status
Enabling the power button
Countermeasure against chips et failure