POST Error Messages List
If you cannot run the diagnostics program tests but did receive a POST error message, use “POST Error Messages List” to diagnose system problems. If you did not receive any error message, look for a description of your error symptoms in “Error Symptoms List” on page 66.
NOTE: When you have deemed it necessary to replace an FRU, and have done so, you must run a total system check to ensure that no other activity has been affected by the change. This system check can be done through the diagnostics program.
NOTE: Check all power supply voltages, switch, and jumper settings before you replace the main board. Also check the power supply voltages if you have a “system
If you are unable to correct the problem by using the “BIOS Messages List” table and “Error Symptoms List” table, go to “Undetermined Problems”.
To diagnose a problem, first find the BIOS error messages in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU listed in right column is the most likely cause.
BIOS Messages | Action/FRU |
BIOS ROM | The checksum of the BIOS code in the BIOS chip is incorrect, indicating the BIOS |
checksum error - | code may have become corrupt. Contact your system dealer to replace the BIOS. |
System halted |
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|
CMOS Battery | The CMOS battery is no longer functional. Contact your system dealer for a |
Failed | replacement the BIOS. |
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|
CMOS Checksum | Checksum of CMOS is incorrect, so the system loads the default equipment |
Error- defaults | configuration. A checksum error may indicate that CMOS has become corrupt. A |
loaded | weak battery may have caused this error. Check the battery and replace if |
| necessary. |
CPU at nnnn | Displays the running speed of CPU. |
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|
Display switch is set | The display switch on the motherboard can be set to either monochrome or color. |
incorrectly | This message indicates the switch is set to a different setting than indicated |
| in Setup. Determine which setting is correct, and |
| then either turn off the system and change the jumper, or enter Setup and |
| change the Video selection. |
Press ESC to skip | The user may press Esc to skip the full memory test. |
memory test |
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|
HARD DISK | Some hard drives require extra time to initialize. |
initializing - Please |
|
wait a moment | Cannot find or initialize the hard drive controller or the drive. Make sure the controller |
HARD DISK | |
INSTALL FAILURE | is installed correctly. If no hard drives are installed, be sure the Hard Drive Selection |
| in Setup is set to NONE. |
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|
Hard disk(s) | The system may run specific disk diagnostic |
diagnosis fail | routines. This message appears if one or more hard disks return an error when the |
| diagnostics run. |
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