Dell OptiPlex 320: 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.

2

See "Dell Diagnostics" on page 30 to identify a more serious cause.

3

Contact Dell for technical assistance. For information on contacting Dell, see your online

User’s

Guide

.

Code Cause Code Cause

1-1-2 Microprocessor register failure 3-1-4 Slave interrupt mask register failure

1-1-3 NVRAM read/write failure 3-2-2 Interrupt vector loading failure

1-1-4 ROM BIOS checksum failure 3-2-4 Keyboard Controller test failure

1-2-1 Programmable interval timer failure 3-3-1 NVRAM power loss

1-2-2 DMA initialization failure 3-3-2 Invalid NVRAM configuration

1-2-3 DMA page register read/write

3-3-4 Video Memory test failure

failure

1-3 Video Memory test failure 3-4-1 Screen initialization failure

1-3-1 through 2-4-4 Memory not being properly

3-4-2 Screen retrace failure

identified or used

3-1-1 Slave DMA register failure 3-4-3 Search for video ROM failure

3-1-2 Master DMA register failure 4-2-1 No timer tick

3-1-3 Master interrupt mask register

4-2-2 Shutdown failure

failure

4-2-3 Gate A20 failure 4-4-1 Serial or parallel port test failure

4-2-4 Unexpected interrupt in protected

4-4-2 Failure to decompress code to

mode

shadowed memory

4-3-1 Memory failure above address

4-4-3 Math-coprocessor test failure

0FFFFh

4-3-3 Timer-chip counter 2 failure 4-4-4 Cache test failure

4-3-4 Time-of-day clock stopped

Quick Reference Guide 37