
Beep Codes
If the monitor cannot display errors or problems, during POST the computer might emit a series of beeps, or beep code, that identifies the problem.
Reseating the memory modules may fix the POST beep code errors listed below. If the problem persists, see "Contacting Dell" in the Dell Owner's Manual for
instructions on obtaining technical assistance.
If you hear one of the following POST beep codes, see "Contacting Dell" in the Dell Owner's Manual for instructions on obtaining technical assistance.
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.
l If the problem still persists, see "Contacting Dell" in the Dell Owner's Manual for instructions on
obtaining technical assistance.
If the problem persists, see "Contacting Dell" in the Dell Owner's Manual for instructions on obtaining
technical assistance.
See "Contacting Dell" in the Dell Owner's Manual for instructions on obtaining technical assistance.
Memory modules are
detected, but a memory
configuration or compatibility
error exists.
l Be sure that there are no special memory module/memory connector placement requirements.
l Verify that the memory modules that you are installing are compatible with the computer.
If the problem persists, see "Contacting Dell" in the Dell Owner's Manual for instructions on obtaining
technical assistance.
USB port or a device
connected to it has failed
initialization.
Disconnect the device from the USB connector.
If the problem persists, see "Contacting Dell" in the Dell Owner's Manual for instructions on obtaining
technical assistance.
l Ensure that the cables are properly connected from the hard drive, CD drive, and DVD drive to
the system board.
l If the problem persists, see "Contacting Dell" in the Dell Owner's Manual for instructions on
obtaining technical assistance.
If the problem persists, see "Contacting Dell" in the Dell Owner's Manual for instructions on obtaining
technical assistance.
Computer has started and
turned over control to the
operating system.
DIMMs 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