Dell Precision 470: Beep Codes Code Cause Code Cause

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.

3

Contact Dell for technical assistance.

www.dell.com | support.dell.com

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

Memory not being properly identified

4-2-4 Unexpected interrupt in protected

through

or used

mode

2-4-4

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

28 Quick Reference Guide