Table 2-1 POST Error Codes and Messages List

NOTE: To diagnose a problem, first find the BIOS error messages or codes in 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 Error Codes,

 

Action/FRU

Messages

 

 

 

 

 

 

Keyboard Is Lock Out-

1.

Enter Configuration/

Unlock The Key

 

Setup Utility and load the

 

 

default settings.

 

2.

Keyboard

 

3.

System board

 

 

 

Manufacturing POST loop

1.

Message only

 

 

BIOS ROM Checksum

1. Clear CMOS and reboot

error-System Halted

 

again.

 

2.

BIOS ROM

 

3.

System board

 

 

 

Memory Test Fail

1.

Enter Configuration/

 

 

Setup Utility and load the

 

 

default settings.

 

2.

Memory

 

3.

System board.

 

 

 

Table 2-2 BIOS Error Beeps List

NOTE: To diagnose a problem, first find the BIOS error beeps in 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 Error Beeps

 

Action/FRU

(L:long beep, S:short beep)

 

 

 

 

 

 

L-L.... (Repeatedly)

1.

Insert the memory

System DRAM has error

 

modules in the DIMM

 

 

sockets properly, then

 

 

reboot the system.

 

2.

Memory module. See

 

 

“005 -” on page 65 to

 

 

replace memory module.

 

3.

System boar

 

 

 

L-S-S

1.

Video adapter card

Video has error

2.

System boar

 

 

 

44 IBM Desktop System HMM

Page 78
Image 78
IBM 2274 manual Bios Error Beeps List, Bios Error Beeps Action/FRU