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 Diagnostics Checklist.
2. Run the Dell Diagnostics to identify a more serious cause.
3. Contact Dell for technical assistance.
No memory modules are
detected.
l Reinstall all memory modules and restart the computer.
l To eliminate the possibility of a faulty memory connector, remove all memory modules, reinstall one
memory module (if the computer supports a single module), and then restart the computer. If the
computer starts normally, move the memory module to a different connector and restart the
computer. Continue until you have identified a faulty connector or reinstalled all modules without
error.
Memory modules are
detected, but a memory
configuration or compatibility
error exists.
l Ensure that no special memory module/memory connector placement requirements exist.
l Verify that the memory modules that you are installing are compatible with your computer.
l If the problem persists, contact Dell.
Another failure has
occurred.
l Ensure that the cables are properly connected to the system board from all installed hard drives.
l Check the computer message that appears on your monitor screen.
l If the problem persists, contact Dell.
The computer is in a normal
operating condition after
POST.
Processor register failure
NVRAM read/write failure
ROM BIOS checksum failure
Programmable interval timer failure
DMA initialization failure
DMA page register read/write failure
Memory not being properly identified or used
Slave DMA register failure
Master DMA register failure
Master interrupt mask register failure
Slave interrupt mask register failure
Interrupt vector loading failure
Keyboard Controller Test failure
Invalid NVRAM configuration
Video Memory Test failure
