Its been running fine but started with hangs while p2p'ing, some CTD in BF4. Then I got a couple of BSOD while playing BF4 and used "WhoCrashed" to analyse the crash dumps:
On Fri 11/03/2016 12:11:28 GMT your computer crashed
crash dump file: C:\Windows\Minidump\031116-35178-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x70380)
Bugcheck code: 0x1A (0x41201, 0xFFFFF680005DB328, 0xC6B0000371F53867, 0xFFFFFA8011F27A90)
Error: MEMORY_MANAGEMENT
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a severe memory management error occurred.
This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Thu 10/03/2016 17:55:07 GMT your computer crashed
crash dump file: C:\Windows\Minidump\031016-23946-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x70380)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF80003374070, 0xFFFFF88008F45CD0, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
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Conclusion
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2 crash dumps have been found and analyzed. No offending third party drivers have been found. Connsider using WhoCrashed Professional which offers more detailed analysis using symbol resolution. Also configuring your system to produce a full memory dump may help you.
First I thought it might be my uncore clock but after tweaking that I got the error message above about memory so I put the RAM to 2400 stock timing and so far no crashes. I've not tested that for long but now I've gone and put cas 10 back but with the other timings standard like: 10,13,14,32 (up from 10,12,13,30).
Maybe a little memory degradation? Since it was running fine for like 6 months.