DELL Workstation 470 and Workstation 670 ユーザーズマニュアル

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Quick Reference Guide

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.dell.com | support.dell.com

Beep Codes

Your computer might emit a series of beeps during start-up if the monitor cannot display errors or 
problems. This series of beeps, called a beep code, identifies a problem. One possible beep code 
(code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells 
you that the computer encountered a memory problem.

If your computer beeps during start-up:

1

Write down the beep code on the Diagnostic Checklist (see your User’s Guide).

2

Run the Dell Diagnostics to identify a more serious cause.

Code

Cause

Code

Cause

1-1-2

Microprocessor register failure

3-3-4

Video Memory Test failure

1-1-3

NVRAM read/write failure

3-4-1

Screen initialization failure

1-1-4

ROM BIOS checksum failure

3-4-2

Screen retrace failure

1-2-1

Programmable interval timer failure

3-4-3

Search for video ROM failure

1-2-2

DMA initialization failure

4-2-1

No timer tick

1-2-3

DMA page register read/write failure

4-2-2

Shutdown failure

1-3

Video Memory Test failure

4-2-3

Gate A20 failure

1-3-1 
through 
2-4-4

Memory not being properly identified 
or used

4-2-4

Unexpected interrupt in protected 
mode

3-1-1

Slave DMA register failure

4-3-1

Memory failure above address 
0FFFFh

3-1-2

Master DMA register failure

4-3-3

Timer-chip counter 2 failure

3-1-3

Master interrupt mask register failure

4-3-4

Time-of-day clock stopped

3-1-4

Slave interrupt mask register failure

4-4-1

Serial or parallel port test failure

3-2-2

Interrupt vector loading failure

4-4-2

Failure to decompress code to 
shadowed memory

3-2-4

Keyboard Controller Test failure

4-4-3

Math-coprocessor test failure

3-3-1

NVRAM power loss

4-4-4

Cache test failure

3-3-2

Invalid NVRAM configuration

4-3-4

Time-of-day clock stopped