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View Full Version : PC doing sudden resets when cold.


Spawinte
May 28 2011, 10:47:14 AM
When booting up or just after making it into windows I just get a sudden reset, no blue screen, no warning or nothing just *bang* reboot. I'm thinking power supply but opinions would be nice. I'm half hoping I won't have to take it apart because I just can't be arsed right now.
balistic void
May 28 2011, 10:59:50 AM
Do your house lights flicker as well? Is button loose? Does PC work perfectly rest of time?
Bombcrater
May 28 2011, 11:24:12 AM
PSU or motherboard, guaranteed. Other than replacing the faulty part there's nothing much you can do about thermal related failures like this except leave the machine on all the time.
ThonEney
May 28 2011, 11:25:30 AM
Possibly it's too humid iirc they have humidity sensors that shut it off after a certain point.
Spawinte
May 28 2011, 11:31:10 AM
Yeah PC works perfectly once it gets warmed up, played Oblivion for 3 hours last night without a hiccup and when I booted it this morning it did a reset just as I was moving my cursor to the firefox icon. I'll get the PSU checked. Leaving it on all the time isn't an option so I'm guessing the daily cold boot for 3 years is taking its toll.
Izo Azlion
May 28 2011, 11:53:18 AM
Out of interest just how much damage is done by cold-booting every day, compared to leaving it on?
ThonEney
May 28 2011, 12:07:32 PM
Seems i missunderstood the title (i did have a pc with a humidity sensor either in the mobo or psu very weird).
Leaving you'r pc on 24/7 is more damage i think, it causes capacitor wear although with modern ones im not sure they'll fail before you need to replace it for performance reasons.
Bombcrater
May 28 2011, 01:10:46 PM
Out of interest just how much damage is done by cold-booting every day, compared to leaving it on?
Very little. It causes more thermal stress on the components, but not really enough to impact on failure rates to any great degree.
Spawinte
June 5 2011, 12:17:25 AM
For anyone that's interested or runs into the same symptom, I opened up the power supply and cleaned out a good bit of fluff that was contacting multiple components simultaneously. I'm told that this might have been causing shorts. I've just started it up for the first time in 5 days and the expected reset didn't occur so fingers crossed.