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HP OmniBook XE2 Troubleshooting and Diagnostics 3-17
Table 3-4. POST Terminal-Error Beep Codes
Beep Codes POST Description
1 One short beep before boot
1-2 Search for option ROMs. One long, two short beeps on checksum failure
1-2-2-3 BIOS ROM checksum
1-3-1-1 Test DRAM refresh
1-3-1-3 Test 8742 Keyboard Controller
1-3-4-1 RAM failure on address line xxxx
1-3-4-3 RAM failure on data bits xxxx of low byte of memory bus
1-4-1-1 RAM failure on data bits xxxx of high byte of memory bus
2-1-2-3 Check ROM copyright notice
2-2-3-1 Test for unexpected interrupts
The following table lists POST messages and explanations for reported problems. If the system fails
after you make changes in BIOS Setup, reset the computer, enter BIOS Setup, and install the defaults
or correct the error.
Table 3-5. POST Messages
Message Description
0200 Failure Fixed Disk
Fixed disk is not working or not configured properly. Check to see if fixed disk is attached
properly. Run Setup. Find out if the fixed-disk type is correctly identified.
0210 Stuck key
Stuck key on keyboard.
0211 Keyboard error
Keyboard not working.
0212 Keyboard Controller Failed
Keyboard controller failed test. May require replacing keyboard controller.
0213 Keyboard locked - Unlock key switch
Unlock the system to proceed.
0220 Monitor type does not match CMOS - Run SETUP
Monitor type not correctly identified in Setup
0230 Shadow Ram Failed at offset:
nnnn
Shadow RAM failed at offset nnnn of the 64k block at which the error was detected.
0231 System RAM Failed at offset:
nnnn
System RAM failed at offset nnnn of in the 64k block at which the error was detected.
0232 Extended RAM Failed at offset:
nnnn
Extended memory not working or not configured properly at offset nnnn.
Update to the latest BIOS version 2.xx. (Service note 4100-06.)
0250 System battery is dead - Replace and run SETUP
The CMOS clock battery indicator shows the battery is dead. Connect the AC adapter for at
least 24 hours, replace the motherboard.
0251 System CMOS checksum bad - Default configuration used
System CMOS has been corrupted or modified incorrectly, perhaps by an application
program that changes data stored in CMOS. The BIOS installed Default Setup Values. If you
do not want these values, enter Setup and enter your own values. If the error persists, check
the system battery. Connect the AC adapter for at least 24 hours, replace the motherboard.
0260 System timer error
The timer test failed. Requires repair of system board.
0270 Real time clock error
Real-time clock fails BIOS test. May require board repair.
0280 Previous boot incomplete - Default configuration used
Previous POST did not complete successfully. POST loads default values and offers to run
Setup. If the failure was caused by incorrect values and they are not corrected, the next boot
will likely fail. This error is cleared the next time the system is booted.
0281 Memory Size found by POST differed from CMOS
Memory size found by POST differed from CMOS.