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Abrupt System Restart While Playing WoW.

post #1 of 10
Thread Starter 
What's up all? My newly built PC has been exhibiting some strange (extremely specific) behavior, and I hope someone here may have a solution to the problem. First I'll provide some background information. I am running a newly assembled system with the following specs (also in my sig):

CPU: I7 3820 O/C 4.6 Ghz
GPU: GTX 670 FTW+ 4gb
MB: ASUS Rampage IV Formula
RAM: Corsair Dominator Plat, 2133 (Currently running at 2000mhz)
PSU: Seasonic 760 Platinum
O/S: Windows 8 Pro
Watercooling: EK Supremacy CPU block, EK FC680+ GPU block, RX 360, RX240, Laing D5 (w/res)

I finished this build about a week ago, and have since mildly overclocked the system to 4.625Ghz with a 125 BCLK and 37 multi @ 1.4V (I know that seems high, but my chip is a dog). I tried to get 5.0Ghz stable for a few days but the VCORE required was too high, so I brought it down to its current clock and tested for stability. I can run Prime 95 for 24 hours without any errors and have been able to run F@H for 12 hours without any problems.

When this problem initially occurred, I assumed the system was not stable, despite my stress testing. To test this, I ran Prime 95 custom (with 14000MB RAM) and Unigine Valley benchmark simultaneously for 12 hours (over night)... no errors. My temps during these tests are <40*C on the GPU and ~68* on the CPU cores. While gaming the CPU cores sit in the ~50*C range and GPU stays at <40*C.

Since I was convinced that my system is stable, I tried reinstalling the game but once it was completely updated the same issue occurred:

When I log into World of Warcraft, after about 5 minutes of gameplay my computer restarts abruptly without warning. There are no error messages, no BSOD, nothing. This seems to point to an overheating / hardware problem (maybe a bad PSU) but the problem doesn't occur during any stress testing or any other gameplay.

Any ideas? Let me know if you need any more information.

-Jim
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post #2 of 10
Check your event logs and let us know what errors it records. maybe take a screenshot.

Sounds to me like GPU but even then would normally throw a bsod.
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post #3 of 10
I had this problem with my old rig. It was not always only 5 mins in though. There were times that I would make it an hour and mid-raid before it would reboot. I never did get it figured out, but I know your pain. Good luck finding your answer. thumb.gif
post #4 of 10
Thread Starter 
Update: The system restarts within a minute of logging into WoW. I started the game to cause the restart to see what kind of error it would cause. See below:

and

Looks like the only error is that the system rebooted unexpectedly (the same error you would get from a hard restart).

If it is a hardware issue, I am confused strange because it doesn't happen with more demanding games / applications (P95 and Unigine Valley benchmark would stress the system more than WoW).
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post #5 of 10
Could you save your events to a log file? Host it somewhere I can download it so I can read it?

I would be interested in application logs and system logs.

And I wouldn't mind taking a look at dxdiag information.

If you run dxdiag you can also run a few graphic tests from there.
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post #6 of 10
During your initial p95 run did you make sure to use as much RAM as possible? How much ram and how many sticks are you using?

As member above mentioned, a log file might be better. Can't read anything off your pics.

If I was a betting man, I would bet something up with the RAM. Your temps seem fine and p95 + heaven will draw more out of your PSU than WoW.

Last 3930k build I did, I had issues with RAM hitting higher speeds. Might have to do something with your RAM overclock. Mine was p95 stable until the 18hr mark (p95 first 12 hrs is more CPU intensive and the last 12 hrs is more IMC intensive).

Have you tried the blend tests and just let it run everything?

Good luck!
Edited by evilferret - 4/5/13 at 1:17pm
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post #7 of 10
Thread Starter 
Thanks to all those who replied. I learned this recently, but if you right click a picture link in a posts and "open link in new tab" or "window" you should be able to view it in full size.
Quote:
Originally Posted by danewfie View Post

Could you save your events to a log file? Host it somewhere I can download it so I can read it?

I would be interested in application logs and system logs.

And I wouldn't mind taking a look at dxdiag information.

If you run dxdiag you can also run a few graphic tests from there.

I've attached my DxDiag file below:

DxDiag.txt 68k .txt file
Quote:
During your initial p95 run did you make sure to use as much RAM as possible? How much ram and how many sticks are you using?

As member above mentioned, a log file might be better. Can't read anything off your pics.

If I was a betting man, I would bet something up with the RAM. Your temps seem fine and p95 + heaven will draw more out of your PSU than WoW.

Last 3930k build I did, I had issues with RAM hitting higher speeds. Might have to do something with your RAM overclock. Mine was p95 stable until the 18hr mark (p95 first 12 hrs is more CPU intensive and the last 12 hrs is more IMC intensive).

Have you tried the blend tests and just let it run everything?

Good luck!

During the last Prime 95 test I ran custom with 14000MB of RAM (I have 16gb).

Update: I believe the problem is fixed, albeit with a less than ideal solution. Strangely, WoW does not respond well to BCLK overclocks (from Blizzard technical support). It may have to do with how it effects the PCI-E lanes, not sure... But this may explain why everything else is working fine (to include synthetic benchmarks and BF3).

My past SB and SB-E chips (2600k and 3930k) have not had a problem running anything (to include WoW) while overclocked using only an increased multi and VCORE. I heard the 3820 was a great overclocker, but it requires an increased BCLK as it is not unlocked.

I reset everything to default (including the memory at its rated 2133 MHz) and the game runs fine.

Thanks again to all those who replied! I wonder if anyone else has had a similar experience. Guess I'll have to get another "K" series chip...tongue.gif
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post #8 of 10
cheers,

glad you got it resolved ... albeit an unfortunate solution.

edit: just out of curiosity do you still have power saving modes enabled? eg) underclocking (intel throttling)
Edited by danewfie - 4/5/13 at 4:21pm
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post #9 of 10
Thread Starter 
I do. I have intel speedstep tech and all C states enabled. Multi drops to 12X when idle. I had them enabled when overclocked as well.
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post #10 of 10
Thread Starter 
Update: I found the root of the problem and can play WoW with my overclocked settings. Some of your questions / recommendations prompted me to investigate one piece of hardware further, the RAM. WoW must push the RAM pretty hard... my VDIMM was OK at its rated 1.5V, but my secondary voltages (CPU PLL, VTT, and VSA) that deal with the IMC were too low. I bumped the VTT and VSA to 1.25V from 1.175 (which is what I used at 1333, when I was testing the CPU overclock stability rolleyes.gif ) and the CPU PLL to 1.8 (from 1.75 ... on auto it was 1.8ish).


Everything is now running well. Hopefully if anyone else runs into this problem, my painful learning experience will help!

Thanks again, Cheers!
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