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. 
Reseating the memory modules may fix the beep code errors in the following table. If the problem persists, see "Contacting Dell" in your Owner's Manual for 
instructions on obtaining technical assistance.  
 
 
If you hear one of the following beep codes, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance. 
 
configuration or compatibility 
error exists. 
l If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining 
technical assistance.  
A possible expansion card 
failure has occurred. 
1. Determine if a conflict exists by removing a card and then restarting the computer.  
2. If the problem persists, reinstall the cards that you removed, remove a different card, and then 
restart the computer.  
3. Repeat this process for each card. If the computer starts normally, troubleshoot the last card 
removed from the computer for resource conflicts (see "Resolving Software and Hardware 
Incompatibilities" in your Owner's Manual).  
4. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining 
technical assistance.  
Other failure has occurred. 
l Ensure that the cables are properly connected from the hard drive, CD drive, and DVD drive to the 
system board.  
l If there is an error message on your screen identifying a problem with a device (such as the floppy 
drive or hard drive), check the device to make sure it is functioning properly.  
l The operating system is attempting to boot from a device (such as the floppy drive or hard drive); 
check system setup to make sure the boot sequence is correct for the devices installed on your 
computer.  
l If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining 
technical assistance.  
The computer is in a normal 
operating condition after 
POST. 
Memory not being properly identified or used 
Memory failure above address 0FFFFh 
Microprocessor register failure 
ROM BIOS checksum failure 
Programmable interval timer 
DMA initialization failure 
DMA page register read/write failure 
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 
Video Memory Test failure