Procedure 1 Message Check; Procedure 1 - Toshiba Satellite U400 Maintenance Manual

Procedure 1

When the power is turned on, the system performs the Power On Self Test (POST) installed
in the BIOS ROM. The POST tests each IC on the system board and initializes it.
If an error message is shown on the display, perform Check 1.
If there is no error message, go to Procedure 2.
If MS-DOS or Windows XP is properly loaded, go to Procedure 4.
Check 1
Check 2
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Message Check
If one of the following error messages is displayed on the screen, press the F1 key
as the message instructs. These errors occur when the system configuration
preserved in the RTC memory (CMOS type memory) is not the same as the actual
configuration or when the data is lost.
If you press the F1 key as the message instructs, the SETUP screen appears to set
the system configuration. If error message (b) appears often when the power is
turned on, replace the RTC battery. If any other error message is displayed,
perform Check 2.
(a) *** Bad HDD type ***
Check system.
(b) *** Bad RTC battery ***
Check system.
(c) *** Bad configuration ***
Check system.
(d) *** Bad memory size ***
Check system.
(e) *** Bad time function ***
Check system.
(f) *** Bad check sum (CMOS) ***
Check system.
(g) *** Bad check sum (ROM) ***
Check system.
If the following error message is displayed on the screen, press any key as the
message instructs.
The following error message appears when data stored in RAM under the resume
function is lost because the battery has become discharged or the system board is
damaged. Go to Procedure 3.
WARNING: RESUME FAILURE.
PRESS ANY KEY TO CONTINUE.
If any other error message displays, perform Check 3.
Satellite U400/Satellite Pro U400/PORTEGE M800 Maintenance Manual
Chapter2 Troubleshooting Procedures
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......