Question about Dell Dimension 4600 PC Desktop

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No power to my dell dimension 4550

I get no power to my dell 4550. there is no green light when I try to turn it on, the fan doesn't work. if i open up the case then the power if on there is green light on the motherboard

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  • klesw Apr 19, 2008

    I have the same problem on a Dell e510...When I plug the computer in, the green light shows up on the mother board. When I push the power button on...absolutely nothing happens...no fans no nothing. I've removed and reseated the memory...checked all connections..removed modem cards, etc. My guess is that the power switch itself has gone bad...or the capacitor on it is shot...does appear to be a mother board or power supply problem..I simply think the power switch is not working and thus is not turning on the computer anymore.

  • abbeyroad17 May 11, 2008

    same problem here, the small green light and a high pitched noise come whenever i put the plug in the power supply, had the power supply tested and it still works, dont get any of the 4 lights in the back, computer doesnt respond at all to anything, only thing i get is the green light on the motherboard.

  • Bearrose Apr 21, 2009

    My Dell 4550 was working fine Saturday and then on Monday it won't power up. There are NO lights on the front on... none at all.

    It's been a lemon from day one. I had to put a new hard drive in it a year ago and I was going to turn it on to install new drivers for a replacement ethernet card when I discovered that it was dead as a door nail.

  • brian c
    brian c May 11, 2010

    Was the unit recently moved around / bumped / dropped?

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It might be a couple of things bad powersupply or power button incorrect ram module or hard drive settings ,if not then lastly have a bad motherboard which we all hate. you said you have a a green light on motherboard? Did you upgrade or install any new ram ,harddrives etc check make sure they are seated properly in their sockets and free from dust check connection on the ram module make sure it shinny brass color if not you can use an eraser to clean them. If you have upgraded check make sure the ram is compatible to your machine sometimes the wrong ram install can cause no power up problem. Do you have four green lights in the back of machine? Dell new desktop has 4 green light in back of the unit . if all four light are green then system is ok but one out of the four light are orange then you have a problem. You can go onto dell web sight for your machine to check out these lights codes. I hope this help you out some.

Posted on Feb 12, 2008

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