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
03044). 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, floppy drive, modems, PC cards, and printers) and providing a reliable power source. Note, make sure the display is adjusted to be visible.
Table 5 - POST Display Codes
Message | Possible Cause |
CLOCK NOT TICKING CORRECTLY | The real time clock is not ticking. |
COLOR/MONO SWITCH INCORRECT | The COLOR/MONO switch on the system |
| board is incorrect for the installed |
| hardware. |
CMOS CHECKSUM INVALID - RUN SCU | CMOS RAM information has been |
| corrupted and needs to be reinitialized via |
| the System Configuration Utility. |
CMOS FAILURE - RUN SCU | CMOS RAM has lost power and needs to |
| be reinitialized via the System |
| Configuration Utility. |
FLOPPY CONTROLLER FAILED | The floppy controller failed to respond to |
| the reset command. Power down the |
| system and check all appropriate |
| connections. It the floppy controller |
| continues to fail, you may need to replace |
| it. |
FLOPPY DISK TRACK 0 FAILED | The floppy drive cannot read track 0 of |
| the floppy disk in the drive. Try another |
| diskette. If the problem persists, you may |
| need to replace the floppy drive. |
FLOPPY INFORMATION INVALID - RUN SCU | The drive parameters stored in CMOS do |
| not match the floppy drives detected in |
| the system. |
HARD DISK CONTROLLER ERROR | The hard disk controller failed to respond |
| to the reset command. Possible |
| solutions: 1) Check the drive parameters. |
| 2) Power down the system and check all |
| appropriate connections. If the problem |
| persists, you may need to replace the |
| hard disk controller. |
HARDWARE INFO DOES NOT MATCH VIDEO | The video adapter type specified in |
CARD - RUN SCU | CMOS RAM does not match the installed |
| hardware. |
KEYBOARD CONTROLLER FAILURE | The keyboard failed the |
| command. Check to see if the keyboard |
| controller is properly installed. If the |
| problem continues, replace the controller. |
KEYBOARD FAILURE | The keyboard failed to respond to the |
| RESET ID Command. |
MACHINE IS LOCKED - TURN KEY | The system will not continue the boot |
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