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Advanced Troubleshooting: Dell Dimension E520 Service Manual
file:///T|/htdocs/systems/dimE520/en/SM_EN/adtshoot.htm[10/16/2012 1:04:50 PM]
compatibility error has
occurred.
(see Memory).
If the problem persists, contact Dell (see "Contacting Dell" in your
Owner's Manual).
A possible expansion card
failure has occurred.
1. Determine if a conflict exists by removing an expansion card (not a
graphics card) and restarting the computer (see Cards
).
2. If the problem persists, reinstall the card you removed, then remove a
different card and restart the computer.
3. Repeat this process for each card installed. If the computer starts
normally, troubleshoot the last card removed from the computer for
resource conflicts (see Resolving Software and Hardware
Incompatibilities).
4. If the problem persists, contact Dell (see "Contacting Dell" in your
Owner's Manual).
The system is operating
in quick resume mode.
Press the power button
Move the mouse
Press any key on the keyboard
Press any key on the optional MCE remote control
Another failure has
occurred.
Ensure that all hard drive and CD/DVD drive cables are properly
connected to the system board (see Drives
).
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.
If the operating system is attempting to boot from a device (such as
the floppy drive or hard drive), check system setup (see System
Setup) to make sure the boot sequence is correct for the devices
installed on your computer.
If the problem persists, contact Dell (see "Contacting Dell" in your
Owner's Manual).
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. For example, beep code 1-3-1 (one possible beep code) 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 (see Installing Memory
) may correct the following beep code errors. 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 experience any of the following non-memory related beep code errors, 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