2.4 System board Troubleshooting

2 Troubleshooting

Table 2-3 D port status (5/6)

D port status

Inspection items

Details

F10Eh

Initializing a NDP

Initializing a NDP

 

 

 

F10Fh

Setting up system

Storing CMOS error information in SMRAM

 

 

 

 

 

Initializing timer

 

 

 

 

 

Initializing a buffer for power saving

 

 

 

 

 

Initializing an EC, and reading battery information

 

 

 

 

 

Updating system BIOS (model name, and EDID of the

 

 

LCD)

F110h

Initializing the display

Waiting for completion of initializing VGA chip and

 

 

initializing VGA BIOS

 

 

 

F111h

Displaying a logo

Displaying a logo on the screen

 

 

 

F112h

Checking conventional memory

Checking conventional memory

 

 

 

F113h

Checking exception in protect

Checking exception in protect mode

 

mode

 

 

 

 

F114h

Checking DMA Page Register

Checking DMA Page Register

 

 

 

F117h

Checking DMAC

Checking DMAC

 

 

 

F118h

Initializing DMAC

Initializing DMAC

 

 

 

F119h

Checking password

Waiting for the end of the FDD initialization process

 

 

 

 

 

Waiting for the end of the HDD initialization

 

 

 

 

 

Checking key-in pressed during the IRT

 

 

 

 

 

Prioritizing ATA

 

 

 

F11Ch

Checking optional I/O ROM

Checking optional I/O ROM

 

 

 

F11Dh

Final setting up prior to boot-up

Storing the value of 40;00

 

 

 

 

 

Setting up the address of font data for resuming

 

 

password

 

 

 

 

 

Setting up the parameters for character repeat on a USB

 

 

keyboard

 

 

Getting keys 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

 

 

 

 

 

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 serial port initialization

 

 

 

PORTEGE R100 Maintenance Manual (960-440)

2-25

Page 61
Image 61
Toshiba R100 manual System board Troubleshooting D port status 5/6, Lcd