Dell Dimension 5150C - Manual (Page 56)

Troubleshooting: Dell Dimension 5150C Service Manual
file:///T|/htdocs/systems/dim5150C/en/sm/tshoot1.htm[10/31/2012 8:21:27 AM]
No memory modules are
detected.
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.
If available, install properly working memory of the same type
into your computer.
If the problem persists, contact Dell (see your computer
Owner's Manual for information about contacting Dell).
Memory modules are detected,
but a memory configuration or
compatibility error exists.
Ensure that no special memory module/memory connector
placement requirements exist (see " Memory ").
Verify that the memory modules that you are installing are
compatible with your computer (see " Memory ").
If the problem persists, contact Dell (see your computer
Owner's Manual for information about contacting Dell).
A possible expansion card failure
has occurred.
1. Determine if a conflict exists by removing a card —not a
graphics card— (see " Cards ") and restarting the 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 "Resolving Software and
Hardware Incompatibilities" in your computer Owner's Manual).
4. If the problem persists, contact Dell (see your computer
Owner's Manual for information about contacting Dell).
Another failure has occurred. Ensure that the cables are properly connected to the system
board from the hard drive, CD drive, and DVD drive.
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.
The operating system is attempting to boot from a device (such
as the floppy drive or hard drive); check system setup to
ensure that the boot sequence is correct for the devices
installed on your computer.
If the problem persists, contact Dell (see your computer
Owner's Manual for information about contacting Dell).
The computer is in a normal
operating condition after POST.
NOTE: The diagnostic lights are
not lit after the system
successfully boots to the
operating system.
None.
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.
Code Cause
1-1-2 Microprocessor register failure
1-1-3 NVRAM read/write failure
1-1-4 ROM BIOS checksum failure