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Dell 8400 dead

When i switch on my dell 8400 it is totally dead light on motherboard is green no lights on back light on power button steady yellow or amber nothing on screen would be greatfull for any help recom

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Can you tell if your hard drive is running? You can here it or feel it spinning. Are the fans running? If no, I'm 99% sure you need to replace your power supply and/or motherboard. This kind of thing usually happens after a power surge.

Posted on Sep 24, 2007

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Posted on Jan 02, 2017

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I have a Dell Dimension 8400 Series desktop that is totally dead. Nothing happens when power button is pushed. Of course it is plugged into a live outlet.


Possibly a bad power supply. Could aslo be bad hardware.

Depeding on how save you are with computers, depends on how far you might want to go with this.

But remove everything one at a time and try to start the computer. Until all you have is a motherboard, processor, fan, and power supply hooked up. If you are still not getting any power, try to swap the power supply first. If that doesnt work then either Motherboard or Processor.

Lastly, swap the power cable out to see if its a bad cable.

May 03, 2011 | Dell Dimension 8400 PC Desktop

1 Answer

Dell Dimension 5100c Model: DCCY will not boot.


Hi,

Is the power button a steady abmber light?

If so follow the instruction below>>>>

Remove the power cord from the back of the computer. Then open the side casing of the tower and unplug the 24 pin block connector from the motherboard. The 24 pin block connector looks like this >>>>>

0b6066f.jpg


Once removed press the on/off button on the computer to dispel and residual power from the motherboard.
Then connect the block connector again and put the side panel back on and then plug the power cord back in and try to boot the computer up.

If its still the same then the power supply inside the computer may need replacing.


Good luck.

Jul 03, 2010 | Dell Computers & Internet

2 Answers

Dell 8400 steady amber light, no diagnostic LEDs, high turbo fan


you will need to change your processor is like it is bad.

Apr 04, 2009 | Dell Dimension 8400 PC Desktop

3 Answers

Dell pc dimensio 5150 wont boot up


If the power light is blinking amber - The computer is receiving electrical power, but an internal power problem might exist.
Ensure that the voltage selection switch is set to match the AC power at your location (where power cord goes into unit).
Also try simply unplugging the unit from the wall outlet for a minute then plug it back in and boot it up.

Feb 14, 2009 | Dell Dimension 8400 PC Desktop

3 Answers

Have a yellow amber light blinking


A Blinking Amber or Yellow power button means that the power supply is receiving power from the source but is unable to properly distribute it to the components. This can be caused by a defective power supply or a defective motherboard. Just to make sure that nothing else is causing the problem, remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged.


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Dec 25, 2008 | Dell Dimension 8400 power supply ** FREE...

2 Answers

Dell c521 won't start


- disconnect the hdd and optical drive cables, remove the expansion card, reseat the atx and 12v cable and turn the computer on. if the power led is glowing green connect the devices on by to find what device is causing the no post issue. after the strip down if the power button is still yellow replace the motherboard

Dec 06, 2008 | Dell Dimension C521 PC Desktop

2 Answers

Dell Dimension 8300 flashing amber power light and dead pc


it seems *********** board is having problem plz send it for servicing

Aug 08, 2008 | Dell Dimension 8300 PC Desktop

1 Answer

No post, only motherboard light on, green.


You might try resetting the bios by removing the battery and the power cable. If there are pins to short do this too after removing the battery and the power cable.

Mar 01, 2008 | Computers & Internet

1 Answer

Pover up trouble


sounds like something is drawing down on your 12 volt supply drives or on board regulators. Try it without the drives connectged, and see if you can get the system to boot up(you'll just get a notice that your drives are unavailable, but you'll already know that, right?

got backup for your Dell?

Feb 15, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

4 Answers

Woes with Dell


If the power light is steady amber, a device might be malfunctioning or incorrectly installed.

Disconect fan , see if it starts.

Jan 13, 2008 | Dell Dimension 8400 PC Desktop

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Oct 16, 2019 | Dell Computers & Internet

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