Question about Dell Dimension C521 PC Desktop

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I have a dimension c521 just replaced hard drive now won t turn on,motherboard light on ...

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  • rwes83 Mar 03, 2009

    yea



  • rwes83 Mar 03, 2009

    the switch will not turn the computer on

  • Brian Cruz May 11, 2010

    r u able to see anything on the monitor or just a black screen?

  • Brian Cruz May 11, 2010

    check to c if the monitor is working and let me know...

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  • 404 Answers

Take off the hard drive that you just placed and see what happens without it.

I think u shorted the board, did you fit the hard drive's power the right side? if not shorted everything...

Posted on Mar 04, 2009

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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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When you connect the 4-pin connector to that device
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Jun 06, 2012 | Dell Dimension C521 PC Desktop

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Dell c521 motherboard diagrams problems


Per Dell's support site: If the power light is a solid amber, a device might be malfunctioning or incorrectly installed.

Turn off the computer and unplug from power:

I would remove and unplug everything except the memory and video card. Then plug the computer back in.
If it posts (dell screen and then a hard drive warning), turn off the computer and start reinstalling each component one at a time and turn on between each install. Hopefully one compenent will fail and you will know what is bad and needs replacing.
If the computer still had the amber light, remove one of the memory modules (hoping you have 2) and try again. If it still fail exchange the modules. If this works you have a bad memory chip, reinstall the rest the componets to double check and power on. Replace the bad chip.
If the computer still fails on both modules, remove both, you should now get a memory beep code, if not then the video card is most likely bad and will need to be replace.

Hope this helps

Jan 31, 2012 | Dell Dimension C521 PC Desktop

1 Answer

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

1 Answer

Reads boot disk failure 0


Boot disc 0 failure is usually indicative of the failure of the hard drive that contains the operating system. Make sure the hard drive is well seated into the cables and that the cables are seated onto the motherboard. If it all is well, then the hard drive has most likely failed and needs to be replaced.

May 19, 2010 | Dell Dimension C521 PC Desktop

1 Answer

How do I restore my Dell Dimension C521? I am


You need the C521 recovery disk, from Dell. Set the BIOS to boot from CD and start the system.

If it gives you the option of "Complete Reinstall" or "Repair", choose Complete Reinstall.

If it does not, or if it does not work - i.e., it always reads the disk and tries to maintain as much data as it can, you need to first wipe out the hard drive; there are many "Disk Wipe" utilities out there. I'd suggest using a boot disk such as DBAN (www.dban.org).

May 07, 2010 | Dell Dimension C521 PC Desktop

1 Answer

Dell Dimension C521 power shuts off spontaneously seems the fan on the power supply isn't working.


Hello,

If the fan on your power supply is not turning then you need to replace the power supply as soon as possible. The machine is overheating and then shutting off. If the power supply is not replaced it can cause additional problems with the motherboard, cpu, and hard drive. Open your case and look on the power supply for your replacement parts number, check Ebay.com for a replacement. They are easy to replace, just a few screws and power plugs.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of PC and printer support/repair

Jun 28, 2009 | Dell Dimension C521 PC Desktop

2 Answers

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- 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

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