Question about Dell Dimension C521 PC Desktop

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Dell Demension C521. Dead! Nothing! Even the little led light on the motherboard.

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  • wfconlon May 09, 2009

    This power supply looks a little different then the ones in the full size CPUs (ATX). Does this size power supply have a name?

  • Benny Freeman
    Benny Freeman May 11, 2010

    most common problem is the power supply
    make sure the little switch on the back is turned on and the power is plugged in.
    what did you di just before this power fault occured?

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  • 81 Answers

This is most likely caused by a power supply failure. If you have or know someone who has another power supply you could use for testing thats where you'll want to start.

Hope this helps.
Mary

Posted on May 09, 2009

  • Mary
    Mary May 09, 2009

    Dell uses a proprietary power supply. While you shouldn't have to order a replacement from them you'll need to know the dimensions so a new one will fit the case. These are the slim Dell's possibly a micro power supply will work.



    Hope this helps

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1 Answer

C521, get the orange light, fan turns on and it's just steadily orange light


A steady or Amber blinking power button indicates a low voltage problem. 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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It will not start even after I replaced the power


Before anything else, open your case and make sure all power and data cables going to motherboard, disk drives, etc are firmly seated, and remove and re-install memory sticks in the same locations. Sometimes temperature changes inside the PC can cause these connections to loosen. If that doesn't fix it, do you hear the noise of the cooling fans coming on? If you do, check your monitor for a green light. If you get a green light on the monitor and fans are powered up and running and you get nothing else it could be a hard drive issue. Try booting from CD in that case. If fans come on briefly and then shut off, or fans stay on and you have no green monitor light, this could indicate an issue with your processor or motherboard.

Jun 04, 2010 | Dell Dimension C521 PC Desktop

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Cannot start up the dell c521, fan is loud and light is orange.


What you are describing is a no post failure. Disconnect all external devices, see if anything changes. if not, replace the motherboard

Oct 28, 2009 | Dell C521 DimensionTM PC Desktop

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On my Demension C521, lightening struck it and when I press the power button, it won't turn on. However, the amber light on the back where you plug the ethernet cable into lights up. Could this just be the...


Yes very likely it is just the power supply... These are one of those things that you have to fix piece by piece. But I would replace the power supply you should be back up and running in no time.

Sep 29, 2009 | Dell Dimension C521 PC Desktop

1 Answer

I want to restore my Dell Demension C521 back to factory setting


You would hit F10 before it gets to the operating system this will load it back to its factory software.

Thanks for using Fixya.com

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It sounds like the power supply went.
Take it to your local computer repair shop for repairs.
Good Luck.

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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

1 Answer

Motherboard change


jethro..
http://support.dell.com/support/edocs/systems/dimC521/en/SM_EN/tshoot.htm#wp1064555
check on system lights... what are the diagnostic lights telling you??
if the 4 lights are off you may have a problem with the led itself or the powersupply is just messing with your head.

Dec 02, 2008 | Dell Dimension C521 PC Desktop

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