Light Pattern
G
Y
G
G
G
G
G
G
G
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 19 to identify a more serious cause.
3
Contact Dell for technical assistance. For information on contacting Dell, see your online
User's Guide.
Code
1-1-2
1-1-3
1-1-4
1-2-1
26
Quick Reference Guide
Problem Description
Memory modules are detected, but a
memory configuration or compatibility
Y
error exists.
Other failure has occurred.
Y
The computer is in a normal operating
condition after POST.
G
Cause
Microprocessor register failure
NVRAM read/write failure
ROM BIOS checksum failure
Programmable interval timer failure
Suggested Resolution
• Ensure that no special memory module
or memory connector placement
requirements exist.
• Verify that the memory modules that
you are installing are compatible with
your computer.
• If the problem persists, contact Dell. For
information on contacting Dell, see
your online User's Guide.
• Ensure that the cables are properly
connected to the system board from the
hard drive, CD drive, and DVD drive.
• Check the computer message that
appears on your monitor screen.
• If the problem persists, contact Dell. For
information on contacting Dell, see
your online User's Guide.
None.
Code
Cause
3-1-4
Slave interrupt mask register failure
3-2-2
Interrupt vector loading failure
3-2-4
Keyboard Controller Test failure
3-3-1
NVRAM power loss