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X79 Sabertooth 3930K Random Lockups (Kind Of)

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May 25, 2013 5:37:59 AM

We recently built a pc for work to do chief architect renderings. The components are 3930K, Asus X79 Sabertooth, (16 Gigs-4 Gigs Ea.) Corsair Vengeance LP, EVGA GTX 670 FTW, OCZ Vertex 3 SSD, Corsair H80i, and an Ultra 750w power supply. The pc is currently overclocked to 4.2 GHz via bios settings, XMP profile with everything on auto except CPU ratio = 42. The pc has passed 9 hours of prime 95 on small fft with no issues, CPU was hanging around 60C, the only thing that gets hot according to AI Suite is the "VCORE" which I'm assuming is the CPU PWM (not sure why they labeled it that way). The issue is that the PC will randomly lock up. When it locks up, some of the programs become unresponsive and some still work. The last time it locked up chief was completely locked but I could still jump between MS Excel and Outlook. After a while these programs would become unresponsive too. I could not access task manager and had to preform a hard reboot. Once I power the PC back on I am greeted by Overclocking Failed! I restart the PC and all is well for another week. I do not run to PC so it makes troubleshooting even harder. I have already taken the OC from 4.3 down to 4.2, tried manual voltage, and have lowered the RAM from 1600 down to 1333. I have also ran Memtest for a few minutes and all modules came up clean, however, I am planning to let it run overnight next week. I do have AI suite along with corsair link installed and do notice that AI suite produces weird readings from time to time such as mobo = -10C. Not sure if that has anything to do with it or not. Any advice would be greatly appreciated!
a b Ĉ ASUS
a b ) Power supply
a b K Overclocking
May 25, 2013 7:05:52 AM

I would try setting your overclock back to stock and see if your lockups continue or stop. I did not see in your post were you have tried that and when you get lockups on a overclock that should be the first thing to try. At least you can rule it out or in. Truthfully with that CPU you really do not need to overclock it and since it is a work related PC instead of personal it should not be overclocked in the first place as a work computer should be completely stable instead of a super fast beast from hell.
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June 11, 2013 12:44:54 AM

I'm running almost the same system, except I'm using 32 GB of ram, GTX 660 SC and a Vertex 4. My current OC is at 4.1 GHz, and it's been rock stable. When I first built my system, I also received Random Lockups and BSOD's. The problem turned out to be the Corsair H80i software, the software, CorairLINK is known to have problems. In my case it was in conflict with the Intel RST(e) drivers. I had to load Intel RST(e) drivers below version 3.0.0.3020 And I have had no further problems.
Oh, and by the way my temps are below 50C.
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July 8, 2013 1:49:23 PM

Sorry for the delay in updates, the PC has a lockup about once every week so it takes a while to test solutions. So far I have checked for .dmp files and there hasn't been any saved for the past few lockups. The event viewer shows that the PC has been hard reset every time (which it was) but I haven't been able to find anything specific. I have removed the Corsair Link software and driver with no success. Going to try setting the PC back to stock.
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July 25, 2013 10:48:43 AM

It's been a few days since the machine was set back to optimized defaults and I thought the issue was resolved but today it finally acted up again. The user said that he could close out of some programs but MS office, AutoCAD, and Cheif Architect were all locked up and he could not access task manager. I am kind of relieved that the overclocking wasn't the culprit but upset that the issue still remains. Since the PC doesn't crash, I cant find any usable information in the event viewer. Any suggestions?

As a side note I'm using the Corsair CML16GX3M4A1600C9B kit which some threads said was not compatible. I have some RAM kits coming in next week to build some new PCs (1155s) so I might swap them out and see if it makes a difference.
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