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2 second power on, then powerdown (repeats)

Discussion in 'Hardware' started by Blowbags, Nov 5, 2011.

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  1. Blowbags

    Blowbags Thread Starter

    Jan 30, 2008
    Hi all,

    Posted this thread last week

    I messed up by letting my processor run without my heatsink sitting properly on it - thinking it was a psu/possible g-card issue I continued to test games, but under advice from here (to test voltages) I found my processor was overheating to as high as 100-110 degrees

    it was working this morning, went out to get a new heat sink and thermal paste, came home, had to take out mobo (and as such, g-card, soundcard, some power connectors) to fit the back panel/rack for the heatsink.

    Job done... I attempted to boot up but got an error 87 on my mobo (power not supplied to processor, I'd just forgot) - the pc just idled with power on for as long as I left it and of course it would not post without a cpu (no power to it) - point being, the power stayed on.

    So with a bit of relief I simply plugged the cpu power cord in thinking that was it... well, nope...

    The PC now powers on for 2 seconds, and cuts power, as if its trying to protect my mobo from a power surge or it just cant power the CPU (I conclude that because if I unplug the cpu power, the machine will stay on, but as say before, no post.
    In this state, it also seems to struggle a few times every 10 seconds, even the LEDs which are constant blink a little and the fans slow for 1-2 seconds.)

    The machine is 5 years old, I have small amounts of super glue near the screw holes where you mount the heat sink, I put too much thermal paste on, basically didnt do a good job of it.

    So essentially all I am asking here is, would this be typical behaviour of a dead processor or board failing to make a connection.

    For what it's worth, specs are:
    Motherboard - Abit IP35 pro
    Intel Q6600 - 2.4ghz (x4)
    4gig ram (Corsair Ballistic 1gigx4)
    1TB Sata + 60gig SSD (SSD is not being used for OS at the moment but is plugged in/using power)
    OCZ 850w PSU

    I have checked places like toms hardware for instructions for how to complete a decent process of elimination, but its seems very excessive - I know that may come across as brattish/impatient, but for something thats been working for 5 years, replace a heatsink, and a sucessfully diagnosed problem component (overheating processor) I kind of resign myself that it cant be the g-card/ram, so don't really fancy testing one chip at a time when they were fine this AM, testing another PSU in my system by tearing a friend's apart - for now, I am more concerned with confirmation of typical symptoms of a truely broken processor and/or mobo.

    Thanks again
  2. lawson_jl


    Aug 3, 2008
    Sounds like your CPU overheated to me or bent a pin when you tried to put it back in. Check for bent pins. If you did bend on you can bend it back and see if it works. Otherwise orfer a new CPU. There is a chance your mobo is damaged too.
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