OOPS. Your Flash player is missing or outdated.Click here to update your player so you can see this content.
PC BIOS Beep Codes E-mail

pc.jpgWhen our PC starts up, the first thing it does is run a Power-on Self Test (POST) to test the computers hardware status. If it detects an error, you will be notified by either a number of audio beeps or an error message on the screen. This page helps to explain what the error message or audio beeps mean.

 

 

 

Standard Original IBM POST Error Codes
 
 

 

Code

Description

1 short beep

System is OK

2 short beeps

POST Error - error code shown on screen

No beep

Power supply or system board problem

Continuous beep

Power supply, system board, or keyboard problem

Repeating short beeps

Power supply or system board problem

1 long, 1 short beep

System board problem

1 long, 2 short beeps

Display adapter problem (MDA, CGA)

1 long, 3 short beeps

Display adapter problem (EGA)

3 long beeps

3270 keyboard card

 

 

IBM POST Diagnostic Code Descriptions

Code

Description

100 - 199

System Board

200 - 299

Memory

300 - 399

Keyboard

400 - 499

Monochrome Display

500 - 599

Colour/Graphics Display

600 - 699

Floppy-disk drive and/or Adapter

700 - 799

Math Coprocessor

900 - 999

Parallel Printer Port

1000 - 1099

Alternate Printer Adapter

1100 - 1299

Asynchronous Communication Device, Adapter, or Port

1300 - 1399

Game Port

1400 - 1499

Colour/Graphics Printer

1500 - 1599

Synchronous Communication Device, Adapter, or Port

1700 - 1799

Hard Drive and/or Adapter

1800 - 1899

Expansion Unit (XT)

2000 - 2199

Bisynchronous Communication Adapter

2400 - 2599

EGA system-board Video (MCA)

3000 - 3199

LAN Adapter

4800 - 4999

Internal Modem

7000 - 7099

Phoenix BIOS Chips

7300 - 7399

3.5" Disk Drive

8900 - 8999

MIDI Adapter

11200 - 11299

SCSI Adapter

21000 - 21099

SCSI Fixed Disk and Controller

21500 - 21599

SCSI CD-ROM System

 

 

AMI BIOS Beep Codes

Code

Description

1 Short Beep

System OK

2 Short Beeps

Parity error in the first 64 KB of memory.

3 Short Beeps

Memory failure in the first 64 KB.

4 Short Beeps

Memory failure in the first 64 KB Operational of memory, or Timer 1 on the motherboard is not functioning.

5 Short Beeps

The CPU on the motherboard generated an error.

6 Short Beeps

The keyboard controller may be bad. The BIOS cannot switch to protected mode.

7 Short Beeps

The CPU generated an exception interrupt.

8 Short Beeps

The system video adapter is either missing, or its memory is faulty.

9 Short Beeps

The ROM checksum value does not match the value encoded in the BIOS.

10 Short Beeps

The shutdown register for CMOS RAM failed.

11 Short Beeps

The external cache is faulty.

1 Long, 3 Short Beeps

Memory Problems

1 Long, 8 Short Beeps

Video Card Problems

 

 

Phoenix BIOS Beep Codes

Note - Phoenix BIOS emits three sets of beeps, separated by a brief pause.

Code

Description

1-1-3

CMOS read/write failure

1-1-4

ROM BIOS checksum error

1-2-1

Programmable interval timer failure

1-2-2

DMA initialisation failure

1-2-3

DMA page register read/write failure

1-3-1

RAM refresh verification failure

1-3-3

First 64k RAM chip or data line failure

1-3-4

First 64k RAM odd/even logic failure

1-4-1

Address line failure first 64k RAM

1-4-2

Parity failure first 64k RAM

2-_-_

Faulty Memory

3-1-_

Faulty Motherboard

3-2-4

Keyboard controller Test failure

3-3-4

Screen initialisation failure

3-4-1

Screen retrace test failure

3-4-2

Search for video ROM in progress

4-2-1

Timer tick interrupt in progress or failure

4-2-2

Shutdown test in progress or failure

4-2-3

Gate A20 failure

4-2-4

Unexpected interrupt in protected mode

4-3-1

RAM test in progress or failure>ffffh

4-3-2

Faulty Motherboard

4-3-3

Interval timer channel 2 test or failure

4-3-4

Time of Day clock test failure

4-4-1

Serial port test or failure

4-4-2

Parallel port test or failure

4-4-3

Math coprocessor test or failure

Low 1-1-2

System Board select failure

Low 1-1-3

Extended CMOS RAM failure


Add as favourites (2) | Quote this article on your site | Views: 5053

Be first to comment this article
RSS comments

Only registered users can write comments.
Please login or register.

Powered by AkoComment Tweaked Special Edition v.1.4.6
AkoComment © Copyright 2004 by Arthur Konze - www.mamboportal.com
All right reserved

 
Tag it:
Delicious
Furl it!
Spurl
Digg
Reddit
YahooMyWeb
Fark

Language Translation

Related Items

lcdmediumsizecover.jpg
 
-------------------------------------------
   
plasmatvrepairsmallgraphic.jpg
 
 
--------------------------------------------

Login Form






Lost Password?

Bookmark Us

 
 

Who's Online

We have 8 guests online