Question about Dell Dimension E521 PC Desktop

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Hello, i have a dell dimesion e521. Our power

Hello, i have a dell dimesion e521. Our power went out and when i tried to turn the power back on the computer keeps freezing. I have been working on this for 2 days now. i even took all my files off and reset it to factory condition, but the problem continues to persist. i also have updated all the drivers from the dell help page. any help you can give me would be greatly appreciated.

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Freezing can be traced to 1 of 2 problems. It's either the Motherboard or the Power Supply. The most likely cause is the Motherboard since when a power supply quits, it will usually turn the machine off.

Posted on Dec 11, 2009

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Just remove your ram and reinstall it. that is loose contact problem.

Posted on Dec 11, 2009


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Dell e521 is stuck in power save mode and flashing the numbers 3 and 4

Try Hitting the Power Button. Some systems require you to hit the power button to bring it out of Power Save, Sleep or Hibernation.

May 15, 2012 | Dell Dimension E521 PC Desktop

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My desktop dell dimension E521 won't come on. The power button just blinks green. A new power supply was tried but that did not work. What is it likely to be and is it gonna be worth fixing?

E521 motherboards are pretty reasonable: so it is worthwhile to fix.
The 570 is a decent system although I am still an Intel guy myself

Aug 12, 2011 | Dell Dimension E521 PC Desktop

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I have a Dell Dimension E521 desktop computer. When I try to turn it on the button just flashes green but it does not come on at all. What might be the cause and is it something major to fix?

Blinking Green power button indicates the computer is in a Windows® Standby power-saving state. Do any LED error codes display on the front? They are located next to the 2 USB ports on front.

Aug 10, 2011 | Dell Dimension E521 PC Desktop

1 Answer


hello facawthon

if there is no response as you said then the most likely cause of it could be the power supply. it is not expensive to replace and all you nee for a dimension 2400 is an ATX power supply around 400 to 500watts.
The dimentions of the power supply is standard wht you have to pay attention to is the back of the power supply. some have two connections (power in and power out) some have two connections and an on-off power switch, and there may be only one connection with or without the on-off switch. All of these are OK, but some Dell cases can take the ones with only power out connections because the back of the case does not have an opening wide enough for others.

The bes thing would be to take the exising one with you if you decide to buy one.

hope this has put you in the right direction.
please leave comment if this was helpful.

Feb 12, 2011 | Dell Dimension 2400 PC Desktop

1 Answer

I dont know how too reboot my dell dimension E521?

Dell seem to not make a lot of computers with reboot/reset button. If Windows is already running, you can turn it off or reboot it from the start menu. What you can also do is to hold down the power button for at least 5 seconds. Usually it will turn it off itself if you hold it for long enough.

Mar 08, 2010 | Dell Dimension E521 PC Desktop

1 Answer

Dell dimesion runnin win 7 only thing i

sir, i you have your motherboard installer you can use it to let you use your onboard video. please try to install it

Jan 21, 2010 | Dell Dimension 1100 PC Desktop

1 Answer

Dell dimension e521 won't turn on

hi !
If your have already changed the power supply, there is still a lot of main points of failure in the no power situation. If the motherboard has a flea light, then it could be one of the components. It can be the memory(if no beeps are heard, then memory is not the cause), it can be the processor, or it can be the control panel, in which the power button is attached. Try to check the cables as well.
Cheers !

Dec 25, 2009 | Dell Dimension E521 PC Desktop

1 Answer

I want to add anati4890 to my dell e521. do I

is not necesary but if you have a small power you must change find out what power supply you have , minimum 500w it's good to have

Dec 03, 2009 | Dell Dimension E521 AMD Athlon 64 X2...

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