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Random Windows 7 Rebooting, cause is power?


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#1
Virlomi

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I have been having troubles as the title of this thread states. My system are on profile.

Symptoms: Shutting down and rebooting, with no discernible pattern to timing of reboots. (Twenty minutes, forty minutes, three hours, six minutes, etc). Sometimes when it shuts off, it will start up, but the CPU fan/processor won't boot up along with everything else. I can go in the tower and remove the power cord that connects near the processor (Shown in the image I attached) and reconnect it and it will start up again.

I've also run an OTL, just on the off chance someone can find something in there that is related perhaps. I'm happy to supply more details if needed; just ask me what is need and how to go about getting it.

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#2
Digerati

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Hi verlomi and to :)

Is this a new build? When did this problem start?
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#3
Virlomi

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It's an eleven month old build at this point. The problem started about a month, month and half ago.
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#4
Digerati

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Okay. So it did work fine for awhile. Any recent hardware changes? Did you verify all other power connections are tight, secure, and correct?

it will start up, but the CPU fan/processor won't boot up along with everything else

Are you sure the CPU HSF (heatsink fan) is properly connected to correct fan header? Is this the OEM HSF assembly?

While Corsair PSUs have a good reputation (one of my preferred brands), you could have one that is failing. Swapping in a spare PSU will eliminate that from the equation.
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#5
Virlomi

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No recent hardware changes that have impacted this. I had a spare set of memory (identical set) that I switched out, thinking maybe that was the cause. Still rebooted. I changed out my video card with an older one, still rebooted. I also got an aftermarket cooler (went from stock to a ZALMAN CNPS9900MAX-B 135mm) thinking that maybe it was overheating the processor (Went from 85-95 celcius down to an average of 20-30 celcius). It's still happpened several times after this change.

I'm positive secured the cords properly. (OEM?)

I don't have a second power supply to switch out. Not one that would work for this rig, anyway. (An old 150watt or something).

Edited by Virlomi, 07 November 2011 - 11:03 AM.

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#6
Digerati

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Went from 85-95 celcius

:) Whoa! That's bad. It should never have gotten near that high. The OEM (stock) fan should have kept it below 60°C with no problem - assuming the interior of the case was kept clean of heat trapping dust and the case provided good front to back air flow through the case.

I see you have ASUS TurboV Evo running. If you are overclocking, stop! At least until this is resolved.

You also have Kaspersky Internet Security and Windows Defender running. You don't need WD with Kaspersky running at the same time.

Have you scanned for malware?
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#7
Virlomi

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I wished I'd gotten the aftermarket cooler beforehand. Learned my lesson on that particular item! It rarely peaks over 40c now. I do a clean-out of its insides once every two to three weeks, and have all of the cords inside bundled together as best as possible to allow airflow.

I don't overclock this rig at all, as I've seen no need to so far.

Is there a way to turn WD off?

I've used Kaspersky to do a full system scan once a month, and critical scans every week. On the off chance, I did a full scan yesterday/day before, and found one trojan which has been taken care of.
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#8
Digerati

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Turn off Windows Defender

As far as the aftermarket cooler, what I am saying is you should not have needed one. The OEM coolers are perfectly suited for the CPUs they come with - IF properly installed. So your 85° to 95°C would indicate it was not properly installed or something else was wrong.

Note too the OEM coolers are warrantied for 3 years and Zalman's for 1 year. If the OEM cooler fails and on the rare chance, it takes out the CPU, replacement of the CPU is covered. If the Zalman cooler fails and on the rare chance takes out the CPU, you are hosed.

And finally, using an aftermarket cooler on AMD and Intel CPUs that come boxed with an OEM cooler violates the terms of the warranty. So there are many good reasons to avoid aftermarket coolers.

My worries are running at 85-95°C may have damaged the CPU, the socket, or the motherboard underneath.

Also, it is odd that you found a Trojan if Kaspersky was running in real-time between your manual scans. It should not have gotten past your security coming in - unless allowed to come in through some risky behavior by one or more of the users of that system. Risky behavior includes the failure to keep Windows updated, running without a current anti-malware solution, not using an active software based firewall, filesharing via P2P and torrents, or visiting illegal gambling or porn sites.

I recommend you have one of our Malware Removal experts have a look at your system. Please see and follow this Malware and Spyware Cleaning Guide.
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