Procedure 1 Message Check - Toshiba Portege M100 Maintenance Manual

2 Troubleshooting Procedures
Procedure 1 Message Check
When the power is turned on, the system performs the Initial Reliability Test (IRT) installed
in the BIOS ROM. The IRT tests each IC on the system board and initializes it.
q If an error message is shown on the display, perform Check 1.
q If nothing is displayed, go to Procedure 2.
q If an operating system is properly loaded, go to Procedure 3.
Check 1 If one of the following error messages displays 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 any error message is displayed, perform Check 2.
(a)*** Bad time function ***
Check system.
(b)*** Bad check sum (ROM) ***
Check system.
(c)*** RTC battery is low or CMOS checksum is inconsistent***
Check system.
2-18
Then press [F1] key
Then press [F1] key
Then press [F1] key
PORTEGE M100 Maintenance Manual (960-452)
2.4 System Board Troubleshooting