PC randomly freezing

nate vongrimm

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Jul 29, 2012
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Hello everyone.

Before I begin, here's my system spec.

CPU: AMD FX-8350
GPU: Sapphire R9 290
RAM: Corsair Vengeance 1600MHz 16GB (4x4GB)
Mobo: Gigabyte FXA990 UD3
HDD: Seagate Barracuda 1TB
OS: [strike]Windows 7 Ultimate x64[/strike] Upgraded to Windows 8.1 x64
PSU: Corsair Enthusiast Series TX750 V2 (750W)

About 6 months ago, I upgraded my CPU to a FX-8350 (Previously used an AMD Phenom II x4).
Everything was running smoothly for the first week or so. Then the freezing started. And they were happening quite frequently (At least 3-4 times a day).
At first, I thought the CPU was faulty so I instantly did checks in that area.
I noticed that the CPU had it's turbo boost feature already enabled in the BIOS and turned that off.
Boom. The freezing had stopped.
Then they started again but this time, they don't happen so often (Roughly once or twice a week).
At that point, I just gave up trying to figure out what was going on and ignored the freezing.

6 months later, something new has happened.
While watching a video, my entire system froze but this time my mouse didn't for roughly 5 seconds.
I found it rather odd that after 6 months of instant freezing, this time was different.
So it peeked my interest to start looking for the root of this issue and hopefully fixing it.

The freezing doesn't happen while doing particular things. They are completely random.

Examples of times frozen:
Watching a video either on YouTube or VLC.
Browsing the internet.
Playing a video game.
After boot up.
Doing nothing.

Now you're probably going to be shouting at the screen now because I don't think the CPU is faulty. Freezing aside, it's survived running the latest games on max settings, it's survived stress tests (Hot CPU tester multiple times), I've put it through video rendering (H.264 codecs mainly), 3D animation renders, the lot, and it's never crippled under the pressure.
I have checked the pins on the CPU and they are all fine.
Temps never go above 70C (And it hardly ever gets the chance to reach 70C).
And no new unusual programs have been installed (unusual = programs I have never used before).

The only thing I cannot do is test the CPU on another system as I do not have the parts to build a second.

So I now need the opinions and expertise of other tech savvy people.
Are there things I haven't tried that I should?
Is there a program that could possibly record a computers entire session in a log so I may be able to pin point what causes the crash?
 
Solution


Look for the CPU/NB voltage setting in the bios and raise that by +0.12. That is the voltage to the memory controller, so it should help stabilize things a little.

nate vongrimm

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Well I never underclocked the RAM as I don't know anything about under/overclocking so I can only assume that my BIOS did that automatically.
And no errors appear. My PC just locks up. Have to force restart in order to get my PC working again.
 

thunderdan602

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Ok. So let me make sure I understand, did you try running your pc under load after you fixed your RAM settings in the BIOS? And if you did, did you still have issue's?

 

nate vongrimm

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I don't know how to make my RAM run at base clock again. I don't know how to over/underclock.
 

thunderdan602

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Okay, I don't know about the Gigabyte BIOS, but on my Asus Sabertooth, I had to enable the "XMP" setting in the BIOS to get my board to read the stock speed of my Corsair Dominator memory. For Gigabyte, look for extreme memory profile in your BIOS and enable it.
 

nate vongrimm

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My memory doesn't come with XMP profiles so that option is unavailable.
I'm using Corsair Vengeance 1600MHz memory.
It's also the Award BIOS.
 

nate vongrimm

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UPDATE: I have found the XMP option in my BIOS but it wasn't called XMP. It was called DRAM E.O.C.P.

I have enabled XMP and used the default 1600 profile.
It has obviously set the RAM to 1600MHz and also upped the voltage from 1.5V to 1.605V.

Got through POST with no issues.
Now here's to hoping this fixes my freezing issue.

I will post again in about a week (unless my PC freezes again).
 

nate vongrimm

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So unfortunately, my PC has frozen again.
So that rules the RAM out of the equation.

I decided to install Windows 8 x64 to replace Windows 7.
Everything was fine for 2 days. Then it froze again. So that also rules out programs (As I had basically none installed).

So I can only blame the CPU now.
But I find it strange that after all the heavy loads it has gone through over 6 months, the crashing hasn't gotten worse.

Is my CPU faulty or could it just be bad BIOS settings?
 

mouta

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It may be a PSU problem. My new system was having the same issue, and I changed to a stronger PSU and the freezes just stopped. You may wanna have a look at that, and see if you're getting enough power.
 

nate vongrimm

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I have a Corsair 750W PSU.
I calculated how much power I would be using in total. It came up to roughly 520W+.
I calculated with extreme.outervision.com/PSUEngine, msi.com/power-supply-calculator, and coolermaster.outervision.com/PSUEngine2.
 

nate vongrimm

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Here are my current BIOS settings.
MsFWd2F.jpg

yaBLpWY.jpg

Does this look right or should I adjust some settings?
I know it says ***** System Voltage NOT Optimized!! *****
It's been saying that since I buffed up the RAM voltage and will only revert to optimized when RAM is at 1.5V (But at the cost of not being able to run at 1600MHz)
 


Look for the CPU/NB voltage setting in the bios and raise that by +0.12. That is the voltage to the memory controller, so it should help stabilize things a little.
 
Solution

nate vongrimm

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So raise the CPU NB VID control by 0.12?
I just want to make sure I change the correct setting as this is uncharted territory for me.
 


That is correct, yes.
 

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