
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 70.
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” on page 76.
NOTE: 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 | |
|
|
| |
I/O Parity Error | 1. | System board | |
|
|
| |
CPU Clock Mismatch | 1. | Enter BIOS Setup and load the default settings. | |
| 2. | Ensure BIOS setting for processor is set correctly. | |
|
|
| |
Real Time Clock Error | 1. | Enter BIOS Setup and load the default settings. | |
CMOS Battery Bad | 2. | RTC Battery. | |
CMOS Checksum Error | 3. | System Board. | |
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| ||
|
|
| |
Equipment Configuration Error | 1. | Ensure the system configuration set in BIOS Setup is | |
|
| correct. | |
| 2. | Enter BIOS Setup and load the default settings. | |
| 3. | RTC battery. | |
| 4. | System board. | |
|
|
| |
System Management Memory Bad | 1. | Insert the memory modules in the DIMM sockets | |
Memory Error at MMMM:SSSS:OOOOh |
| properly, then reboot the system. | |
| 2. | Memory module. | |
| 3. | System board. | |
|
|
| |
RAM Parity Error | 1. | Enter BIOS Setup to disable parity check. | |
| 2. | Memory module | |
| 3. | System board | |
|
|
| |
PS/2 Keyboard Error or Keyboard Not Connected | 1. | ||
PS/2 Keyboard Interface Error | 2. | Enter BIOS Setup and load the default settings. | |
PS/2 Keyboard Locked | 3. | PS/2 keyboard | |
4. | PS/2 mouse | ||
| |||
| 5. | System board | |
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|
| |
Onboard xxx... Conflict(s) | 1. | Enter BIOS Setup and load the default settings. | |
| 2. | Remove all adapter cards that are NOT factory- | |
|
| installed, then reboot the system. | |
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|
| |
Floppy Disk Controller Error | 1. | Diskette drive cable/connection. | |
Floppy Drive A Error | 2. | Diskette drive. | |
Floppy Drive B Error | 3. | System board | |
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| ||
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|
| |
On Board Parallel Port Conflict(s) | 1. | Enter BIOS Setup and load the default settings. | |
On Board Serial Port 1 Conflict(s) | 2. | Remove all adapter cards that are NOT factory- | |
On Board Serial Port 2 Conflict(s) |
| installed, then reboot the system. | |
|
| ||
|
|
| |
Floppy Drive(s) Write Protected | 1. | Ensure that the diskette drive is not set to [Write | |
Hard Disk Drive(s) Write Protected |
| Protected] in the Security Options in BIOS Setup. | |
| 2. | Load default settings in Setup. | |
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68 | Chapter 4 |