Question about Dell Dimension 8400 PC Desktop
The Amber A and C signifies a failure to post. Computers Post BIOS to Processor, then RAM, then back to Processor before initializing the other devices. Try reseating the RAM or replacing it before you go further.
If you have upgraded the devices within the PC recently, you should consider that you should not be running anything less than a 350W power supply.
I hope this helps.
Posted on Jun 23, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
What can cause this error?
Well, this is the problem since quite a variety of problems can trigger the error.
1: the bios can be malfunctioning (a bios reset or flash can give a solution)
2: the cpu can be malfunctioning (this requires a new cpu)
3: the cpu socket can be failing (this requires a new mb)
4: the problem can be with bad usb sockets
5: even a bad uplink to a usb hub can cause this error to appear.
Did you change your monitor lately? I would chase down the USB things first...that and the monitor seem to trip the trigger...
Hope this get you started- I think you were right on target with the flash of the BIOS-try it again using the BIOS flash downloaded from the dell site...and to run the chipset again...it just might
Good luck my friend, hope this helps, please leave rating, thank you kindly
Posted on Apr 27, 2009
I have this problem with my 8400 also. After lengthly research, it appears that bad capacitors on the motherboard is the overall consensus to the cause of the problem. If you look for caps that have swelled and in some cases leaked electrolyte (a brown/tan color) you might fine your problem. You can replace the bad capacitors if you are comfortable with doing it or replace the motherboard.
Posted on May 01, 2009
1. Remove All External Devices
2. Check the Computer's Power LED
3. If the power LED has not changed unplug the Power Cable From the Computer Disconnect All Hard Drive Power and Data Cables and power on the computer. If still no go.
4. Remove All PCI, PCI-E, and AGP Expansion Cards .
5. Remove All Memory From the Computer
6. Reseat the ATX and 12-Volt Connections . The ATX connector will be a 4 pin square connector connecting to the motherboard from the power supply and the 12-Volt Connection would be the biggest connector with a lot of colored wires.
7. If still no go.
8. Disconnect the Power Connection to the Chassis Fan
9. If the light still flashes then it could be a power supply or motherboard failure. Try a good know power supply first and if that does not fix the problem it is the motherboard. Also check the back of the tower for 4 lights lables ABCD or 1234.
Rate if useful.
Posted on Aug 11, 2009
Perhaps the problem is on a daughter card that sits just behind the power button. The daughter card has a part number on it "TOPSEARCH ts-m-8v01c". The card has a mic jack, a headphone jack, two USB ports, the power switch itself, and LEDs which light up the HDD icon and some numbers on the front of the PC. On the one I am fixing, the power button is flaky. I am considering replacing the board ($50 or more) and replacing the switch entirely.
Posted on Sep 13, 2009
Tips for a great answer:
Jul 27, 2012 | Dell Dimension 8400 PC Desktop
Feb 05, 2011 | Dell Dimension 8400 PC Desktop
Apr 17, 2010 | Dell Dimension 8400 PC Desktop
Apr 04, 2009 | Dell Dimension 8400 PC Desktop
Feb 17, 2009 | Dell Dimension 8400 PC Desktop
Jan 20, 2009 | Dell Dimension 8400 power supply ** FREE...
Dec 25, 2008 | Dell Dimension 8400 power supply ** FREE...
Jan 13, 2008 | Dell Dimension 8400 PC Desktop
Sep 27, 2011 | Dell Dimension 8400 PC Desktop
216 people viewed this question
Usually answered in minutes!