Toshiba Portege 2000 Maintenance Manual page 58

2 Troubleshooting Procedures
D port status Inspection items
F105h Initializing a PIT and a CPU
F106h Initializing ACPI, KBC, VGA,
sound function, and PIC
F107h Initializing PCI
Initializing a LAN
2-22
Table 2-3 D port status (3/6)
details
Initializing the channel 0 of a PIT
Initializing the channel 2 of a PIT
Testing the channel 1 of a PIT
Testing the channel 2 of a PIT
Measuring the clock speed of a CPU
Enabling SMIs except auto-off feature
Handling events from an EC
Performing timeshared process for time measurement of
IRT
Updating microcodes
Enabling or disabling the function of processor serial
b ID
Checking whether Geyserville is supported
Switching CPU clock speed to high
Storing the size of ROM in a buffer
Reading EC version
Updating the type of flash memory
Determining what country the computer is designed to be
d i
Checking the default settings of CMOS
Initializing ACPI table
Setting up a clock generator
AC'97 control
Initializing information of thermal control
Initializing a KBC
Turning VGA display off and controlling reset
Initializing sound function
Starting the computer multiple box status check
Initializing a PCI
Testing a PIC
Initializing self-test control status
Initializing password
Initializing PCI
Initializing information of LAN
Checking the factor of WakeUp
2.4 Main board Troubleshooting
Portege 2000 Maintenance Manual (960-333)