IBM Support

POST beep and no beep errors - PC Server 325

Troubleshooting


Problem

PC Server 325 POST beep and no beep error code listing

Resolving The Problem

Always start with 'General Checkout'
The Symptom-to-FRU Index lists beeps, errors, symptoms, and the possible causes. The most likely cause is listed first. Use this Symptom-to-FRU Index and the Symptom-to-FRU Index (QAPlus/PRO) in the PS/2 Hardware Maintenance Manual to help you decide which FRUs to have available when servicing the computer.

NOTE:
For IBM devices not supported by the QAPlus/PRO diagnostics code, refer to the manual for that device.

For information on: Go to:
Additional service help. (For example, 0S/2 Trap)errors, or "Related Service Information".
Possible software and hardware mismatch problems. (Not repairable by replacing FRUs) "Software/Hardware Mismatch Problems".
Memory Configuration Problems "Memory".
Replacing the system board does not correct the problem. See "System/Processor Board Replacement".

No Beep Symptoms
No Beep/Symptom FRU/Action
No Beeps occur after successfully completing POST 1. Disconnected speaker
2. Speaker

3. System board

Beep Symptoms:
Beep symptoms are short tones or a series of short tones separated by pauses (intervals without sound). See the following examples.
Beeps Description
1-2-X One beep
A pause (or break)

Two beeps

A pause (or break)

Any number of beeps
4 Four continuous beeps

Beep/Symptom FRU/Action
1-1-2
(Microprocessor register test failed)
1. Optional Microprocessor
(if installed)

2. Microprocessor
1-1-3
(CMOS write/read test failed)
1. Real-Time Clock with Battery
2. System board
1-1-4
(BIOS ROM checksum failed)
1. System board
1-2-1
(Programmable Interval Timer failed)
1. System board
2. Microprocessor Board
1-2-2
(DMA initialization failed)
1. System board
2. Microprocessor Board
1-2-3
(DMA page register write/read failed)
1. System board
2. Microprocessor Board
1-2-4
RAM refresh verification failed
1. System board
2. Microprocessor Board
1-3-1
(1st 64K RAM test failed)
1. DIMM
2. Microprocessor Board
1-3-2
(1st 64K RAM parity test failed)
1. DIMM
2. Microprocessor Board

3. System Board
2-1-1
(Secondary DMA register failed)
1. System board
2. Microprocessor Board
2-1-2
(Primary DMA register failed)
1. System board
2. Microprocessor Board
2-1-3
(Primary interrupt mask register failed)
1. System board
2. Microprocessor Board
2-1-4
(Secondary interrupt mask register failed)
1. System board
2. Microprocessor Board
2-2-1
(Interrupt vector loading failed)
1. System board
2. Microprocessor Board
2-2-2
(Keyboard controller failed)
1. System Board
2-2-3
(CMOS power failure and checksum checks failed)
1. Real-Time Clock with Battery
2. System board
2-2-4
(CMOS configuration info validation failed)
1. Real-Time Clock with Battery
2. System Board
2-3-1
(Screen initialization failed)
1. System Board
2-3-2
(Screen memory failed)
1. System Board
2-3-3
(Screen retrace failed)
1. System Board
2-3-4
(Search for video ROM failed)
1. System Board
2-4-1
(Video failed, screen believed operable)
1. System Board
3-1-1
(Timer tick interrupt failed)
1. System Board
3-1-2
(Interval timer channel 2 failed)
1. System Board
3-1-3
(RAM test failed above address 0FFFFh)
1. DIMM
2. Microprocessor Board

3. System Board
3-1-4
(Time-Of-Day clock failed)
1. Real-Time Clock with Battery
2. System Board
3-2-1
(Serial port failed)
1. System Board
3-2-2
(Parallel port failed)
1. System board
3-2-3 (Math coprocessor failed) 1. Optional Microprocessor (if installed)
2. Microprocessor

3. Microprocessor Board
3-2-4
(Failure comparing CMOS memory size against actual)
1. DIMM
2. Microprocessor Board

3. Real-Time Clock with Battery
3-3-1 (Memory size mismatch occurred) 1. DIMM
2. Microprocessor Board

3. Real-Time Clock with Battery
Three Short Beeps 1. DIMM
2. Microprocessor Board

3. System Board
One Continuous Beep 1. Optional Microprocessor (if installed)
2. Microprocessor

3. Microprocessor Board

4. System Board
Repeating Short Beeps 1. Keyboard
2. System Board
One Long and One Short Beep 1. Video adapter (if present)
2. System Board

3.
One Long and Two Short Beeps 1. Video adapter
(if present)

2. System Board
Two Long and Two Short Beeps 1. Video adapter


Document Location

Worldwide

Operating System

Older System x:Operating system independent / None

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Document Information

Modified date:
28 January 2019

UID

ibm1GSMH-3EXL57