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2 Troubleshooting Procedures 2.4 System Board Troubleshooting
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.
If an error message is shown on the display, perform Check 1.
If nothing is displayed, go to Procedure 2.
If an operating system is properly loaded, go to Procedure 4.
Check 1 If one of the following error messages displays on the screen, press the Run
Setup 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 Run Setup key as the message instructs, the SETUP screen
appears to set the system configuration. If any error message is displayed, perform
Check 2.
If error message (a) appears often when the power is turned on, replace the RTC
battery. If any other error message displays, perform Check 2.
(a) 0250: RTC battery is low
(b) 0251: CMOS checksum is inconsistent
(c) 0271: Check date and time settings
(d) 0290: ROM data is invalid
Check 2 If the following error message appears on the screen, press the Continue key as
the message instructs. This error occurs, when consumption of battery or failure
of system board loses the resumed data. Go to Procedure 3.
WARNING: RESUME FAILURE.
If any other error message displays, perform Check 3.
2-18 Satellite M30-35 Maintenance Manual (960-455)