Computer turning off and on, on its own....

By Slayer_ ·
Ok, so this is strange.

It started off two days ago, I closed a cabinet in my room, and when I stood up, my computer turned off and restarted (my computer is set to stay off in a power outage). I figured, maybe it vibrated the video card, its happened before. Ok.
So I wiggle the tower a little, no issues. Stand up, walk passed it from right to left across the front of it, and it restarts again, wtf?

It didn't occur to me yet, but ok, so I just turned it back off (held power button) and walk away. I came back to put the item back in the cabinet, walked passed the machine from right to left again and the computer started itself!
So I waited for it, got to the login screen and it froze at the login....
So I hard restarted it, froze immediately after login, hard restarted again and it was running, but suddenly now, it didn't like resolutions under 1280 x 1024, anything less and it left about 50% black space on the screen on either side (25% on the left, 25% on the right). So I rebooted, I could see the windows logo and post was getting squished. Then it booted up again and 3 seconds after logging in, the screen turned black and white!
I thought maybe my old monitor dying, so I turned on the second monitor and turned on duel view, black and white on both!

So reboot again, same problem. So I go update the video drivers. Problem solved, but it still hates the resolutions. Ok, screw it, moving on.
Last night, it shut down again while watching a movie, it would not beep at the post for the first few tries, then it fired up after I unplugged it for a bit.

Now brings me to today, when I made the real connection.
I fired it up, and walked out to change the TV channel, I came back to grab the stereo remote out of the cabinet, and when I walked passed the computer, from right to left, I heard it restart. So I stepped back, and repeated my walk, and sure enough, it restarted again the very moment I stepped on the carpet.

So I tried standing there, lifting my foot up and down, etc, nothing. Only when I walked passed it. I made sure I did not rub the case, I even tried walking passed it naked, it still restarted! Then I closed the front door on my case (One of those cases that can cover the CD drives) and walked by it, it restarted one more time, so I tried again, on my last walk through, my monitor made a click sound and the video re snapped to the edges properly again. And it has stopped restarting when I walk passed it (for now anyways). I now take the long way around my computer to avoid walking in front of it.

WTF????? Any thoughts?

I double checked, all my games that suddenly had problems with the resolution are fine again.

Here is a folder of images.
The silver computer is the one with the problem. Its ventilation is on the front, left and rear, the right side is where the board is mounted, so no fans. So I can't see there being any ventilation issues.

It has started doing it again. I have removed the filter on the power, its still doing it. But the monitor and display seem fine so far.

Confirmed that the monitor is causing some problems, I can smack it and have the edges of the screen wiggle or even snap to the sides, to the top, etc.
By keeping the door closed the restarting has stopped. I'm starting to wonder if static is affecting the reset button, the next time I am in the case I am going to unplug the reset button and see if that solves the problem.

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All Answers

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Reponse To Answer

by Slayer_ In reply to Power Supply

What does a leaking capacitor look like?

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leaking caps / bulging caps . . .

by Who Am I Really In reply to Computer turning off and ...

the top is blown out like a frozen beer can

see these:

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What Latitude are you at?

by Snak In reply to Computer turning off and ...

I note your message is dated 16th Feb. Since 14th Feb the sun has been blowing out unusually huge sunspots; such sunspots play havoc with elecronic equipment. China has already reported some radio communications have been affected. Today (17th), these sunspots are expected to give us a good lightshow at lattitudes much lower than normal.. Which means of course that there's likely to be some wierditude happening 'lower' down the planet....

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Reponse To Answer

by Slayer_ In reply to What Latitude are you at?

Winnipeg. Lat/Long
Winnipeg, Man., Can. 49 , 54 / 97 , 7

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You are far enough North, I think ....

by Snak In reply to Computer turning off and ...

... for it be a feasible area of investigation. Perhaps your neighbours are suffering similarly. Any patterns you have discerned may be entirely coincidental (which means you can out your clothes back on :) )

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Ok, It's doing it again, so i removed the filter, the problem continues

by Slayer_ In reply to Computer turning off and ...

Its still the same, if I walk infront of it from right to left, the computer restarts.

Need help, this is irritating.

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Reponse To Answer

by Peconet Tietokoneet In reply to Ok, It's doing it again, ...

Here you are SinisterSlay...
Swapping your board without so much as a reinstall:

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Reponse To Answer

by Slayer_ In reply to Ok, It's doing it again, ...

I intend to replace my board soon, so thanks.

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Chg Power Supply and add chokes

by cpusteve_wired In reply to Computer turning off and ...

I feel the electricity in your room.. seen the pics 1. new power supply rated to 400 watts 2. clean up the cables behind the rack (velcro ties) 3. put rf chokes on all cables you can. 4. if still happens, then replace video card./ mobo. Good Luck

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Reponse To Answer

by Slayer_ In reply to Chg Power Supply and add ...

Whats an RF choke?

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