computer turns on but no display no beep

July 25, 2011 at 21:14:02
Specs: Windows XP, PENTIUM D 3.2GHZ / 2 GIGS
i have a p5gc-mx /1333 mb computer that turns on but no display. The fans are all working and the hd spins. Sometimes the computer can bootup but will shutdown again after 2 or 1 hours or even less than an hour. After the computer shuts down i have to wait about a month or 2 weeks before it will bootup again. The error message that i notice in one of the days when the computer turn on is "high voltage output" something like that. Using a software that shows the computers voltage output, the 12volts increase to 13 volts is this normal? I'm not sure if this is a psu problem. Appreciate any help......thanx

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#1
July 25, 2011 at 21:55:53
It could be an overheating problem, could be a power supply problem. Since you didn't list any temperature readings or any details about the power supply, it's impossible to say.

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#2
August 2, 2011 at 15:32:16
The normal tempretures about 38 to 42 and when runniing a program, the tempreture increases from 42 to about 52 degresses. One other thing when the computer turns on and doesn't boot there seems to be no power powering the cd drive. Usually when the computer turns on the green light on the cd drive would turn on but it doesn't. Is it possible that this could be a motherboard problem?

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#3
September 24, 2011 at 23:23:10
I had a similar problem. Everything will work ok, I turn it off and the next time I turn it on, lights go on, fans turn, but there is no video output. The monitor stays blank and powers down since there is no input. If I press and hold the power button,it will turn off,but does nothing when I press the power button again. If I turn it off, power down the motherboard by flipping the power switch in back and wait 10 secs, I then can turn it on. It boots with video and works perfectly until the next time I turn it off. I have used both a Nvidia and ATI graphics cards with the most recent drivers and updated to the most recent BIOS and yet this situation persists. I vaguely remember this problem arising after a storm. I use a surge protector, but could my motherboard be damaged?

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#4
September 25, 2011 at 03:19:12
The overvoltage warning could be a powersupply problem or a motherboard problem.
Begin by trying with a known good powersupply. If that does not resolve the problem then it sounds like you are up for a new motherboard

Goin' Fishin' (Some day)


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