So I went to turn on my computer, no dice, So I was like ok, no big deal, bad power supply; I replaced the power supply. Usually I can flip the switch on the back of the power supply and the LEDs and UV light will come on, then I hit the on switch to the computer. But now, even with the new power supply, the LEDs and UV lights dont come on, and their power connectors are independent of the motherboard obviously, so it cant be a fried motherboard can it? did I get a DOA power supply?

9/12/2006 3:14:38 PM

check your breaker and surge protector and outlet lol

9/12/2006 3:15:41 PM

ive done all 3, no problems there, and I swapped power cables, nothing.

9/12/2006 3:30:43 PM

got a voltmeter?

9/12/2006 3:37:08 PM

unfortunatley no

9/12/2006 3:53:03 PM

Sounds like it might be a bad power supply (the second one)

You can test it by getting a wire (or paper clip at worst) and with the power supply unplugged, short the green wire to a black wire. plug in the power supply and it should start running.

that won't test voltages but its a good starting point, and can tell you if the thing is dead.

they sell ps testers at tiger direct $10 if youre really curious...could probably also get a cheap voltmeter somewhere too.

9/12/2006 4:20:16 PM

DOA power supply +1

9/12/2006 7:56:06 PM

nix on the power supply being DOA, I tried one that is working on my computer, and no dice once again. And i tested MY power supply on someone else's computer, and it works, so its not the PS.

9/13/2006 4:37:35 PM

broken switch?

9/13/2006 4:46:37 PM

give it a jump

9/13/2006 4:51:14 PM

what switch? I know for a fact the power supply is good, because it turned on my dads computer when I swapped it out to test it. How do you jump it?

9/13/2006 4:55:49 PM

When in doubt with hardware not working . . . unplug ALL exterior cords, then plug in only the ones that you need (power cable, mouse, keyboard, VGA). If that doesn't work, time to check the interior items. Strange stuff happens when things are only partially plugged in, so just unplug and replug and see what works for you.

Edit: Suggestion from other. Take off the front cover of you computer and then push the button. It may not be going in all the way. Also ensure that both the power extension cord and its internal connectors are making a proper connection to the power supply itself.

[Edited on September 13, 2006 at 5:24 PM. Reason : .]

9/13/2006 5:19:45 PM

Ive unplugged everything and replugged it numerous times. Its not the button on the front of the computer though, unfortunatley I cant even get that far. Usually I flip the switch on the power supply first, my LEDs and mouse come on, then I turn the computer on from the front. But now Im flipping the power supply switch and nothing comes on, just straight up nothing happens. As ive said before, BOTH power supplies are good, It powered up my dads computer, Ive already ruled that out, my sure protector, wall outlet, power chord are good, and ive unplugged everything and replugged it, still nothing. Im really beggining to think its a bad motherboard.

9/13/2006 5:53:54 PM

When you say LEDs, are you referring to a lighting accessory? Or are these the LED indicators that are on a motherboard? If its the former, then disconnect them. Have you tried starting the computer with just the motherboard power connector and the power connector for your primary hard drive attached? Heck, try disconnecting the harddrive power and see if the motherboard alone just boots. If there is a short or a bad connection in any of those other devices, the powersupply might be just shutting itself down.

9/13/2006 7:13:34 PM

yeah, sounds like it

9/13/2006 7:13:40 PM

yea, LED accessory lighting, and the LEDs inside the Power supply's fan, but the lights on the PS arent even coming on. Yet they come on and power up when I plugged it up to my dads computer

9/13/2006 7:53:23 PM

you might've mis-diagnosed your original problem and replaced the wrong component (power supply) when you should've replaced the motherboard.

that or your motherboard fried when the power supply went bad. either way, looks like you need a new mobo.

9/14/2006 12:37:59 AM

once again it has to be the outlet

9/14/2006 1:10:53 AM

^ he said he already checked those three things, look at his response right after yours, it's the third post.

9/14/2006 1:37:41 AM

^ben94gt also said:

Quote :

"Im really beggining to think its a bad motherboard."

this is when it's great to have a psu tester in your pc tool kit it helps save a lot of time and prevents mis-diagnosis. i highly recommend it and at $10-20, they are a lot cheaper than buying a new psu.

9/14/2006 8:52:19 AM

well I went ahead and ordered a new mobo today; hopefully it will fix my problem when it gets here.

9/14/2006 3:01:01 PM

new mobo came in, that fixed it! thanks for the help

9/18/2006 4:09:05 PM

Quote :

"You can test it by getting a wire (or paper clip at worst) and with the power supply unplugged, short the green wire to a black wire. plug in the power supply and it should start running."

some Dell systems use the same connector as ATX with a different pin-out, early AMD760MP/X boards used the EPS12V connectors with different pin-outs, even PSUs with the standard pin-out may not use the standard color coding, and a faulty PSU by definition is not operating to spec-- it is never a good idea to poke a paper clip or unfused wire into the power connector of a suspected bad (or known good) PSU, unless you really don't care about that power supply

9/18/2006 7:40:44 PM