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Kard63

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#1

A pc I assembled myself is randomly dying

05-10-2009, 07:06 AM

It just goes blank like someone pulled the power cord.

Would you guess it is from heat?

The first time it happened I turned it right back on and it happened again. I took the side panel off and waited. It didnt happen again for a few weeks. Then it didnt happen again for a few months and I noticed the side panel I had taken off was leaning against it almost closing it. I just got some heat monitoring software- I just wanted to know if you thought I was on the right track because I had been told in the past that taking the side of the case off might lower the overall temperature of the case but changes air flow in a way that causes the really hot components that need cooled to get even hotter. It is a coolermaster case but it has a quad core cpu and a nvidia 8800GTX video card too.

Thoughts?
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Emil

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#2

05-10-2009, 07:09 AM

Well, whats the temps?

http://www.cpuid.com/hwmonitor.php
http://www.alcpu.com/CoreTemp/

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Kard63

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#3

05-10-2009, 07:12 AM

I'm using speedfan and right now it says the GPU is 73C, the CPU is 60C, and all the hard drives are between 46 and 53.

Unlike when it shut down this is with the case side completely open and I have not done any heavy processing since I turned it back on. They might have been higher.
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buyandsell

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#4

05-10-2009, 07:16 AM

i'd say either overheating or lose ram/cpu or drive could make it reboot spontaneously
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Kard63

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#5

05-10-2009, 07:23 AM

Thanks! I'll make sure the RAM isn't loose. When you said "drive" did you mean the cable isn't connected well or the drive might be dying? I have a raptor for the system drive. I thought it might decrease the response time for some operations but its size is annoyingly small. Should I replace it?
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Penthouse Tony

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#6

05-10-2009, 07:29 AM

Could also be a faulty power supply or not enough watts for all your components.

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SmokeyTheBear

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#7

05-10-2009, 07:38 AM

cpu 2 hot or bad ram is the first guess

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woj

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#8

05-10-2009, 07:57 AM

Originally posted by Kard63

I'm using speedfan and right now it says the GPU is 73C, the CPU is 60C, and all the hard drives are between 46 and 53.

Unlike when it shut down this is with the case side completely open and I have not done any heavy processing since I turned it back on. They might have been higher.

Are you overclocking it? those seem a bit high for idle temps...

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voa

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#9

05-10-2009, 07:59 AM

Hope you will fix that
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#10

05-10-2009, 08:00 AM

grafix card getting too hot is my first guess.
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Kard63

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#11

05-10-2009, 08:03 AM

Originally posted by Sagi_AFF

Could also be a faulty power supply or not enough watts for all your components.

If the power supply was faulty shouldn't it happen more often? It is 750watts. I have 3 hard drives, 2 optical disk drives, a big ass video card that needs two plugs, and normal crap like the mobo and fans.

Originally posted by SmokeyTheBear

cpu 2 hot or bad ram is the first guess

This shit was pricey. I certainly don't want to replace the ram if that isn't the case. Any test in mind?

Originally posted by woj

Are you overclocking it? those seem a bit high for idle temps...

It wasn't exactly idle. I was browsing the web and the side of the case is off (like I said above I read that can lower the overall case temperature but increase the temp of some compnonents). I am not overclocking.

I'm thinking about making sure the ram is tightly in place, putting the side of the case back on, and watching the temp as I do some shit that requires more CPU and graphics. Any other thoughts before I do that?

Thanks to everyone!
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Emil

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#12

05-10-2009, 08:10 AM

"GPU is 73C, the CPU is 60C".

Is this your idle temps?

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bronco67

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#13

05-10-2009, 08:15 AM

Sounds like Power Supply to me. I've built quite a few machines, and most problems of this nature usually lead back to the PSu. How many watts is it? Are you trying to run a bunch of extra components and a big 8800gtx on a small PSu? remember that those cards need 2 dedicated 12v rails with nothing else sharing, so your psu should have at least 4x12v rails.

The guy that taught me how to build stressed that above all else, never, ever skimp on power supply.

Also, 60c is pretty hot for idle temps. Mine never gets above 40 under full load.

Last edited by bronco67; 05-10-2009, 08:19 AM.
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Kard63

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#14

05-10-2009, 08:17 AM

Originally posted by Emil

"GPU is 73C, the CPU is 60C".

Is this your idle temps?

When I first turned i on and hadn't started browsing the web yet the CPU was 4 degrees lower.

I think I might have found the problem... I have the Zalman 9700 CPU cooler pictured here:
http://www.jail.se/pictures/2007/new...alman_9700.jpg. In the back of the case near the top there is a fan blowing hot air out. The Zalman pretty much lines up with it to blow it all out... I mounted the Zalman backwards. The fan built into the case to blow hot air out probably isn't having an easy time with another fan right in front of it blowing the opposite direction (back into the case). Thoughts?

Last edited by Kard63; 05-10-2009, 08:18 AM.
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Kard63

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#15

05-10-2009, 08:25 AM

I read this GPU should be able to handle high 80's no problem and the CPU kicks off in the high 70's. Well, as soon as I started doing something intense the CPU jumped to 75 degrees. With the case shut and the fans blowing in, what seems to be, the wrong direction that would probably get it up a few more degrees don't you think?
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