Increasingly Sudden Shutdowns

December 24, 2009 at 10:24:16
Specs: Windows Vista, Pentium D Presler 965 @ 3.73GHz
Pentium D Presler 965 @ 3.73GHz
XFX Geforce 9600 GSO
OFX Technology 800 watt power supply
EVGA 750i SLI FTW motherboard
6 GB DDR2 RAM

Hey guys I built my pc about 6 months ago, and it has been running like a dream. That is until about 3 days ago when it shut off mid game. I booted it back up only to have it shut off again this time while surfing the web. There was no error message, everything was running fine it just shut off, like someone unplugged it or something. Also the amount of time it would stay on started decreasing every time I would reboot. Until I got to the point I am at now where it will stay on for a minute max. This is really annoying as Christmas is here and any new games are going to have to wait until I can solve this problem. The only thing I have changed from the original configuration is adding 2, 1GB sticks off the same brand RAM about 2 months ago. If anyone else has this problem I wish you luck! And if you've succeeded in remedying it please let me know what you did?


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#1
December 24, 2009 at 10:39:12
Making sure the computer is unplugged...
Check all connections and pull and re seat the ram.

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#2
December 24, 2009 at 10:47:53
I think your system is overheat. Check the system temp in bios.

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#3
December 27, 2009 at 15:57:33
I have already pulled and re sat the RAM. As well my computer
has never run hot, and it will not stay on long enough right now to
get hot anyways.

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Related Solutions

#4
December 27, 2009 at 16:13:48
If the cooling hardware is not installed or working right the computer can overheat in 10 seconds or less.

Boot into the BIOS screens and go to PC Health. Sit there watching the temps to see if it shuts down.

While in that screen look at the shutdown temperature setting and the 3.3V, 5V and 12V readings to see how far off they are from what they should be.


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#5
December 27, 2009 at 16:17:18
I understand but it doesn't last long enough to get to the temp,
also I just cleaned the heatsink and fans. They are all working
fine.

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#6
December 27, 2009 at 16:21:41
When you assembled the computer originally what did you use between the CPU & HSink?

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#7
December 27, 2009 at 16:40:24
I got the most expensive stuff in the store, but thats a good idea
im going to check it out a redo that as well

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#8
December 28, 2009 at 12:09:52
Well still no luck guys, any other suggestion before I send in my
power supply in for RMA.

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#9
December 28, 2009 at 12:54:32
I had a similar problem not so long ago with unexpected shut downs and while I figured it would be an overheating issue, it turned out my power supply was faulty. I'm not really sure what triggered the problem because I hadn't been doing much differently. The only thing I could think of was the fact that I'd installed a new printer hours before the problem first kicked in.

I can't imagine why that would have caused it. Sounds like it might be the power supply for you too. that can lose performance pretty dramatically.

The Definitive Guide to Registry Cleaners &
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#10
December 28, 2009 at 12:56:24
What is the model of your PSU?

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#11
December 28, 2009 at 13:25:21
Ya the descriptor up top is wrong, it's a OCZ Technology 850W
model oczgx850

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#12
December 28, 2009 at 13:37:14
Is it one of these two?

http://www.newegg.com/Product/Produ...

http://www.newegg.com/Product/Produ...


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#13
December 28, 2009 at 14:14:59
Nope it's this one

http://www.newegg.com/Product/Produ...


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#14
January 3, 2010 at 15:25:10
So I replaced my power supply and guess what! The problem is
still there, the computer only stays on for a couple seconds.
Long enough to get to the BIOS but not long enough to even read
any of it. Honestly I'm losing my mind over this, please
somebody if you've had a similar problem and the PSU wasn't
the answer, please help.

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#15
January 3, 2010 at 15:31:19
If you are sure the PSU is good then that leaves the CPU or the RAM.

"I got the most expensive stuff in the store, but thats a good idea
im going to check it out a redo that as well".

Are you sure you applied the thermal paste correctly? Did you thoroughly clean off all the old stuff from both surfaces with solvent?


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#16
January 3, 2010 at 15:42:16
I've just taken it apart, I never ended up redoing it. Upon looking
at it now I see that although I did buy thermal paste, I must have
gotten lazy because the only thing on there was the stock paste
that was already applied to the heatsink. If you could point me to
a good tutorial for applying it that would be awesome. Also what
is the best thing to use to clean the old stuff off.

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#17
January 3, 2010 at 15:56:28
I use lacquer thinner but acetone works well too. Nail polish remover without any oil is acetone.

Check out the link below.
The link is for a brand of thermal compound but the directions should work for any brand thermal paste.

http://www.arcticsilver.com/arctic_...


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#18
January 4, 2010 at 16:03:54
I'd just like to say I'm responding on my own PC. Thank you very
much OtheHill, you were very helpful. Everyone could use a
friend like you!

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#19
January 4, 2010 at 16:52:47
You are welcome

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