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Dead computer, no explanation

Forum Homebuilt Systems : General Homebuilt - Dead computer, no explanation

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Hi, during a recent restart my system got to the point where it detects the monitor and then simply hung, turning the monitor to standby mode and never reaching any boot screens. I attempted to turn the computer off with the power button but it did not respond, I then flipped the switch on the power supply to turn it off. The computer does not turn on at all now, nothing no signs of life, disconnected the psu from the computer in an attempt to test it by itself but it does not turn (not sure if i did this correctly, hooked a fan to one of the connections and turned it on, nothing). All of these parts are under 30 days old, I have no idea which part failed, but I am assuming power supply. Even if it was CPU or MOBO the PSU would still turn on correct? Just looking for opinions or similar experiences before I swap parts... as this could break more of them. Thanks.

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Your description is extremely confusing. You make assumptions about what happened instead of saying what actually happened.

"got to the point where it detects the monitor"
The only point where this happens is when the OS loads. Are you saying it booted into windows and hung? I suspect what you really meant was that you heard some noises and saw a brief flash on the screen, which then failed to detect a signal and so entered standby.

"turning the monitor to standby"
Your computer does not do this. Your monitor does this when it no longer detects a signal.

"never reaching the boot screens"
OK so your OS never loaded, right? You never saw any white text on the screen at all, so you are saying you saw no BIOS messages.

-Take the side of your case off.

-Unplug the power supply from the wall.

-Make sure the power supply switch is ON.

-Wait a few minutes, then plug the PSU back in. Did you hear any noise from the PSU briefly?

-If not, replace the PSU. Get a quality one from a recommended brand.

Reply to Proximon

Ok if you have a standard atx psu what you need to do to see it it powers on is to place a jumper between the green and a black wire on the 20/24 pin power connector.

Reply to bobbknight

From what I can make of what was said, it does sound like the psu but theres no guarantee it didnt take out the motherboard or anything else with it.

You will know once you get another psu and connect it. If that doesnt fix it then post back here and tell us what it does and we go from there...

Reply to englandr753

Test your PSU. The following link will explain to you how to test your power supply. If you do this and your PSU does not come on then it is the PSU.
http://www.techwarelabs.com/guides/misc_mod/psumod/

Note: This is not a complete test of the PSU.

Message edited by dallasjoh on 10-04-2008 at 03:45:40 PM

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Dead computer, no explanation

Forum Homebuilt Systems : General Homebuilt - Dead computer, no explanation

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