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Can't Tell If Problem Is Mb, Cpu Or What The Heck

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#1 ascoredhat


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Posted 01 September 2007 - 01:17 AM

Hi everyone,

I have a PC with Win XP that I don't know where the problem lies.

In a nutshell, the computer had been seeming to freeze, run slow and just generally be a sort of pain in the buttocks a week ago. But I didn't really have time to play with it as we were going on vacation, so it got turned off. When we got back, I tried to turn it back on and, well, it won't turn on. And, yes, I've checked all the electrical connections. And proof that it's plugged in is that when I turn on the power button in the front, the green light comes on... but that is all it does. No sound whatsoever. No spinning, clicking, buzzing, etc. Other than the green light coming on when I push it and going off again when I push it a second time, the computer doesn't do one single thing. If it weren't for the green light coming on, I would, of course, assume the power supply was dead. I would guess that since at least the green light comes on, then power must be coming from somewhere. I wondered if maybe the hard drive crashed, but wouldn't it at least do the initial booting before the error messages of not finding the hard drive and stuff came up? So then, the question I guess is what do those symptoms most sound like? Motherboard failure? CPU failure? The monitor says it's getting no signal, even when the green light on the front of the computer is on. And, as I said earlier, other than the green light coming on when I turn on the computer, there is absolutely nothing else happening. Not a single peep of sound from within.

Any ideas on where the problem lies? Thanks!

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#2 usasma


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Posted 01 September 2007 - 07:39 AM

The quickest, easiest thing would be a power supply tester (about $10 at most major computer shops). Alternatively, try a power supply from a known good computer.

Once you figure out if the PSU is good - then disconnect everything from the motherboard (except the CPU and it's fan), hook up the PSU to it and see if you get anything. Then try adding the memory back in, then the hard drives, etc. Here's a link about troubleshooting via system stripdown: http://www.bleepingcomputer.com/forums/t/70216/hardware-troubleshooting-via-system-stripdown/
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