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Boot Failures
The System BIOS attempts to display an error message on the display and halts when it
encounters the following error conditions.
1. Fixed disk error
Causes:
• No drive connected
• Configured for 0 cylinders
• Controller reset failed
• Drive not ready
• Track 0 seek timed out
• Drive initialization failed
• Drive recalibration failed
• Last track seek failed
2. CMOS checksum failed
Causes:
• CMOS checksum failed
3. Timer error
Causes:
• System timer (0) failed
4. I/O error
Causes:
• I/O conflicts exist for serial and parallel ports, hard disk (any or all)
5. Over Temperature Error
Causes:
• Internal temperature exceeded 50˚C causing the system to shut down
6. Other error
Causes:
• Peripheral components IRQ conflicts
The System BIOS prints an error message but does not halt when it encounters the following
error conditions.
1. RTC error
Causes:
• RTC lost power
2. CMOS error
Causes:
• RTC battery failed
3. Configuration error
Causes:
• User BIOS Extension Region X will exceed DFFFFH
Appendix C: Troubleshooting 37
CS Manual LAYOUT#1787 3/9/98 5:33 PM Page 37