Display Codes
There are a number of Power On Self Test (POST) tests that are performed after the Beep Code tests. Failure of one or more of these tests will result in a displayed failure code (such as 0240). It is extremely important not to interpret a failure code immediately as a hardware failure. The failure should be confirmed with a clean boot. A clean boot is defined as pressing the reset button after removing all accessories (including memory cards, external floppy drive, modems, PCMCIA cards, and printers) and providing a reliable power source.
The following list explains a number of POST Display Codes. Note, not all codes are available on all models of the OmniBook.
No Error; | 0000h | test passed |
Routine Passed |
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80x86 Microprocessor |
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000fh | MPU failed self test | |
Error |
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BIOS ROM Checksum |
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0010h | errors relating to the BIOS rom | |
Errors |
| checksums |
| 0011h |
|
Real Time Clock Errors |
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0110h | 011X where X = bad register | |
| 0120h | RTC clock tick error |
CMOS Errors |
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0240h | CMOS power bad | |
| 0241h | CMOS checksum bad |
| 0280h | HP checksum bad |
| 0282h | EISA checksum bad |
| error code 0281 was previously used | |
8041 Errors |
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0301h | did not read 0AAH command | |
| 0302h | did not respond to 0AAH command |
| 0303h | bad Response to 0AAH command |
| 0305h | did not respond when setting keyclick |
|
| volume |
| 0306h | did not read 0C0H command |
| 0307h | did not respond to 0C0H command |
| 0308h | keyboard fuse is open |
| 0311h | did not read 060H command |
| 0312h | did not read data for 060H command |
| 0341h | did not read kbd interface test cmd |
| 0342h | did not respond to kbd intrf test |
| 0342h | add |
| 00343h | kbd clock line stuck low |
| 00344h | kbd clock line stuck high |
| 00345h | kbd data line stuck low |
| 00346h | kbd clock line stuck high |
| 0350h | no ACK from kbd test |
| 0351h | bad ACK from kbd test |
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