Question about Dell Dimension C521 PC Desktop

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My computer was downloading windows updates overnight and froze. Tried turning it off from the power button, but did not work so I unplugged the computer. Few hours later I plugged the computer back in and it would not start. Power button is pushed in and is stuck pushed in. When I plug the computer in the fan comes on, power light blinks green once, and the whole thing shuts down. Any idea on how to fix? Thanks Robert

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You will have to get your power button unstuck. I do not know what type of button you have but if you would like to at least get your PC on without it instantly turning off, you can remove the power switch connector from the motherboard. You will eventually need to have the switch unstuck, or replaced though.

Posted on Oct 13, 2013

Testimonial: "It turned out that the power button was stuck. I had everything unplugged from the computer and took the side panel off. The power button connects to a small plastic tube which is a couple inches long and curves upward. The plastic tube goes into a panel, and at the joint where the tube enters the panel the tube was stuck. With the tip of a screw driver I softly pushed the tube back into place and the power button popped out. Thanks for the help."

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  • 64 Answers

If it's a Dell computer, the PSU is in safe mode, to fix Dell desktops with power cord out press and hold the power button, then connect the mains power lead, keep the power button held until it shuts-down release the button, now try turning on as normal... Hope that works for you.

Posted on Oct 17, 2013

  • Glenn Marsden
    Glenn Marsden Oct 17, 2013

    If it's a Dell computer, the PSU is in safe mode, to fix Dell desktops with power cord out press and hold the power button, then connect the mains power lead, keep the power button held until it shuts-down release the button, now try turning on as normal... Hope that works for you.

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Joed911
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SOURCE: Computer won't turn on unless I unplug the Ethernet Cable

Is the Ethernet built-in on the system board? I would go to BIOS (hit F2 while booting the PC) and disable the ethernet. then restart the PC. See if it stays on with or without the Ethernet cable plugged in. If it does. The built-in Ethernet circuit is the problem. I would buy a Ethernet adapter ($20).and install it. and leave the built-in ethernet disabled.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

Posted on Oct 12, 2008

  • 1 Answer

SOURCE: Computer wont turn on

I had the same problem here. And sure enough it was the USB socket that had been bent inside or broken off. Basically the pins were touching the sides of the casing and causing it to short on power up.

I used the method suggested above - get a screwdriver and (MAKING SURE THE POWER IS OFF) bend the pins from the USB socket back into shape so they are no longer touching the side casing. The USB port is unusable but the machine powered up straight away and is now working fine.

Thanks for your help!!

:))

Posted on Oct 31, 2008

  • 60 Answers

SOURCE: Flashing Green Power Light on Tower

Try holding down the power for a full minute or two then start it up again. The power button may be set for sleep and not shut down. You may have to hold the button longer. If that doesn't work it could be RAM, or a serious problem with the motherboard.

Posted on May 06, 2009

  • 1 Answer

SOURCE: 4600C no power, flashing amber light

i have a dimension 4600c. same problem. amber flashing light no sounds. replaced my power source and its now working fine. bought one on ebay for $47

Posted on May 11, 2009

madhatter639
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SOURCE: power button if flashing orange and nothing else works

It's likely that your power supply has started to go out. There are several different leads with varying voltages & amps. If your computer is getting enough power to make a light flash yellow or orange then this often means that there is something wrong with one or more of the voltages from the power supply. Sometimes it means that something is wrong with your motherboard. Like: burned out capacitors, resistors, & etc.

Posted on Jul 06, 2010

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