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HP Omnibook 500 Troubleshooting and Diagnostics 3-27
Table 3-5. POST Messages
Message Description
0200 Failure Fixed Disk
The hard disk is not working or is not configured properly. Make sure the disk is installed
properly. Use BIOS Setup to make sure the hard disk type is correctly identified.
0210 Stuck key
A key is stuck on the keyboard.
0211 Keyboard error
The keyboard is not working.
0212 Keyboard Controller Failed
The keyboard controller failed its test. The motherboard may need to be replaced (the
motherboard contains the keyboard controller).
0213 Keyboard locked – Unlock key switch
Unlock the system to proceed.
0220 Monitor type does not match CMOS – Run SETUP
The monitor type is not correctly identified in BIOS 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 is not working or is not configured properly at offset nnnn. Update to the
latest BIOS version.
0250 System battery is dead – Replace and run SETUP
The CMOS clock battery indicator shows that the battery is dead. Connect the AC adapter for
at least 24 hours; replace the CMOS battery; replace the motherboard.
0251 System CMOS checksum bad – Default configuration used
System CMOS has been corrupted or modified incorrectly, perhaps by an application 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 CMOS
battery. Connect the AC adapter for at least 24 hours; replace the CMOS battery; replace the
motherboard.
0260 System timer error
The timer test failed. Replace the motherboard.
0270 Real time clock error
The real-time clock failed the BIOS test. The motherboard may need to be replaced.
0280 Previous boot incomplete – Default configuration used
The previous POST did not complete successfully. POST loads default values and offers to
run BIOS 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
The memory size found by POST differed from CMOS.
02B0 Diskette drive A error
02B1 Diskette drive B error
Drive A: or B: is present but fails the BIOS POST diskette tests. Make sure the drive is
defined with the proper disk type in BIOS Setup, and that the drive is installed correctly.
02B2 Incorrect Drive A type – run SETUP
The type of floppy drive A: is not correctly identified in BIOS Setup.
02B3 Incorrect Drive B type – run SETUP
The type of floppy drive B: is not correctly identified in BIOS Setup.
02D0 System cache error – Cache disabled
The RAM cache failed and BIOS disabled the cache. The motherboard may need to be
replaced. A disabled cache slows system performance considerably.
02F0: CPU ID:
CPU socket number for Multi-Processor error.
02F4: EISA CMOS not writeable
ServerBIOS2 test error: cannot write to EISA CMOS.
02F5: DMA Test Failed
ServerBIOS2 test error: Cannot write to extended DMA (Direct Memory Access) registers.
02F6: Software NMI Failed
ServerBIOS2 test error: Cannot generate software NMI (Non-Maskable Interrupt).