Question about Dell Dimension C521 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 power supply?

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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.

Posted on Sep 29, 2009

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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.

Oct 27, 2012 | Dell Dimension C521 PC Desktop

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Dell dimension c521 solid amber light


When you plug in the power cord is there any lightswhatsoever on the computer?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the computer is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous. Most times the problemis with the memory or Video Card. Count the Blinking Lights or Beeps and takenote of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.Maybe your power supply is going bad or is bad. Sometimes the power supply has enough power to emit a light or make lights come on but not enough power to start the fans or disk drives.

Maybe your memory is bad or the memory slot is bad.Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.

May 29, 2012 | Dell Dimension C521 PC Desktop

2 Answers

My dell dimension c521 power button is amber color and the computer will not turn on. what can i do?


Amber power button usually is associated with ether power supply or motherboard issue. U can try to unplug it from power for about 30 min and see what happens. Also try to turn it on with all the extras removed like keyboard and mouse. If this does not work i would take in to repair shop unless u have testing tool for power supply and know how to do it. Good luck.

Mar 15, 2011 | Dell Dimension C521 PC Desktop

1 Answer

All of diagnostic lights on the front panel are off . The system light turns solid amber. The system does not start yet. the fan always starts noisely. How can I fix the problem and start the computer...


Hi,

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 >>>>>

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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.


Regards.
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Aug 05, 2010 | Dell Dimension C521 PC Desktop

1 Answer

NAD C521 on / off button light


"POWER ON: Press this Green button to switch on the power to the disc player from Standby mode. The LED will change from Amber to Green, and the EFL display will illuminate."

So besides the L.E.D. the unit has another visual indicator that it's turned ON, the display lights up. Is this worth pursuing a fix?

Mar 03, 2010 | NAD C521 CD Player

1 Answer

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


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

May 09, 2009 | Dell Dimension C521 PC Desktop

1 Answer

Tower problems


You may need to replace the cmos battery, its a cr2032 3v button cell
Make sure all your expansion cards and memory are reseated.
Make sure all cables are reseated.
your power supply could be bad

If that doesn't work try this


Here is my fix for the dell dimension 4400 amber light problem. It works!
replace cmos battery.
then unplug power cord form wall about 5-10 secs.
then plug it back in, wait 5 secs.
If amber light comes on, press and hold power button until it goes out.

(with light out, press and hold power button while amber light comes on and goes off again holding power button 2-3 secs after light goes out.) repeat whats in parenthesis until computer turns on
it should only take about 6, 7 tries.

After the computer boots, you may want to setup cmos or boot into windows.
After you shutdown, unplug power cord for 5-10 secs then plug it back in.
Press and hold the power button, computer should come on.
I found that's the only way to turn on the computer.
If you shutdown and don't unplug power cord the computer may not boot, mine didn't.
Strange I'd say

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Apr 01, 2009 | HP Computers & Internet

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