Beep Codes - Dell Dimension 4700 Series Service Manual

A possible floppy or hard drive
failure has occurred.
A possible USB failure has
occurred.
Memory modules are detected, but
a memory configuration or
compatibility error exists.
A possible expansion card failure
has occurred.
Another failure has occurred.
The computer is in a normal
operating condition after POST.
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.
Code Cause
1-3-1 through 2-4-4 Memory not being properly identified or used
4-3-1 Memory failure above address 0FFFFh
If you hear one of the following beep codes, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.
Code Cause
1-1-2 Microprocessor register failure
1-1-3 NVRAM
1-1-4 ROM BIOS checksum failure
1-2-1 Programmable interval timer
1-2-2 DMA initialization failure
1-2-3 DMA page register read/write failure
3-1-1 Slave DMA register failure
3-1-2 Master DMA register failure
3-1-3 Master interrupt mask register failure
3-1-4 Slave interrupt mask register failure
Reseat all power and data cables and restart the computer.
Reinstall all USB devices, check cable connections, and then restart the computer.
Ensure that no special memory
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Verify that the memory modules that you are installing are compatible with your computer.
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If the problem persists, contact Dell (see your Owner's Manual).
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1. Determine if a conflict exists by
computer.
2. If the problem persists, reinstall the card 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 your Owner's Manual).
4. If the problem persists, contact Dell (see your Owner's Manual).
Ensure that the cables are properly connected to the system board
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drive, and DVD drive.
If there is an error message on your screen identifying a problem with a device (such as the
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floppy drive or hard drive), check the device to make sure it is functioning properly.
The operating system is attempting to boot from a device (such as the floppy drive or hard
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drive); check system setup
installed on your computer.
If the problem persists, contact Dell (see your Owner's Manual).
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None.
module/memory connector placement requirements exist.
removing a card (not a graphics card) and restarting the
to make sure that the boot sequence is correct for the devices
from the hard drive, CD