Question about Dell Dimension E521 PC Desktop

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Dell dimension issue: system is gone off all of sudden.. it looks like there is a problem with the add on card which consists 2 USB ports and microphone and headset speaker.... but this card is connected to the supply of power button

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  • pranavrshah Jan 30, 2009

    I have not remove the add on card .. its fixed in a very complex manner and is hard to remove. It is not USB speakers or headphones that are not working. We are talking about the full system which is not even booting up. I have checked that fan is working, all connections are made properly. Even hard disk is working fine.

    Now there is one add card which I am talking about. this card had 4 lights blinking previously when system was ok. Now this card is also connected to the power button so i assume its for supply, etc. but now when i open the system there are few lights on the card but I can't see any lights from outside and even there is nothing appearing on the monitor of the screen.

  • pranavrshah Jan 30, 2009

    I have also checked fan, it is working properly, there is no head sink problem. Yes i have gone out of warranty but I dont understand like if there is a light blinking on motherboard as well.... i dont think there is any problem with supply but how can this card affect for the system to even start at least... and also the card is located in such a complex way that i can't even remove or disable it

  • Glenn Rogers
    Glenn Rogers May 11, 2010

    On the back or bottom of your PC is a label called a Service Tag, it is around 7 characters long including letters and is clearly ID'd as the Service Tag.

    Without that we can't help you very much. It allows us to login to Dell and see all the parts installed on your system.

    Your Motherboard LED should be on in a steady state and not blinking unless you are possibly in Hibernation.

    I will need the service tag to then find your manual.

    Thanks, I'll be back tonight.


  • cosmataz May 11, 2010

    Does your whole system shut down? Assuming it does, you have to unplug everything and turn off comp. Reconnect everything again, and start it up. If this doesn't work, and assuming you have a UPS that is working, check your fan that sits on your CPU. If this is getting hot due to the additional hardware, your CPU will definetly shut off without notice. You must make sure the fan is working properly at all times. CPU heats up very fast w/out fan.

  • Glenn Rogers
    Glenn Rogers May 11, 2010

    Are these USB speakers and headphones?

    Have you removed the add on card and have the problem go away?

    I'll be away from my terminal for a day but reply anyway as another expert may reply in my absence .Otherwise, if you removed the card and the problem has resolved itself, leave it that way until I can get back with you.

    I assume you are out of warranty? And, please include the Dell Service Tag.




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It seems likely that you have somehow dislodged/interupted the graphics card GUI, which enables windows to come on the screen. Without this, the system will not boot properly due to the fact that your CPU is looking for it and cannot find it. You may want to double check to see if that card is in properly. Also, did you download driver for the new card? If not the right driver, it won't work. Another thing to check could be the IRQ I/O addresses (go to device manager/advanced) If they are not assigned a number, they won't work either. You can always hit F1 (it may be different on your comp, try f8 or f12) after you hit power switch, to see if it will give you the boot info before your OS starts up. Of course, you will not be able to see it if you have no video. Try to listen to the comp when turning it on. How many beeps does it make? It should only make 1, if it is making more, or a long one, you can find out problem that way.

Posted on Jan 30, 2009


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