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 codes.
2. Run the Dell Diagnostics to identify a more serious cause.
3. Contact Dell for technical assistance.
No memory modules are detected.
l If you have one memory module installed, reinstall it and restart the computer. See "Memory"
for instructions on how to remove and install memory modules.
l If you have two or more memory modules installed, remove the modules, reinstall one module,
and then restart the computer. If the computer starts normally, reinstall an additional module.
Continue until you have identified a faulty module or reinstalled all modules without error.
l If available, install properly working memory of the same type into your computer.
l If the problem persists, contact Dell.
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 (see
"Memory").
l If the problem persists, contact Dell.
Other failure has occurred.
l Ensure that the cables are properly connected to the system board from the hard drive, CD
drive, and DVD drive.
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.
Microprocessor register failure
ROM BIOS checksum failure
Programmable interval timer failure
DMA initialization failure
DMA page register read/write failure
Video Memory Test 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
Screen initialization failure
Search for video ROM failure
Unexpected interrupt in protected mode
Memory failure above address 0FFFFh
Timer-chip counter 2 failure
Time-of-day clock stopped
Serial or parallel port test failure
