BSOD 6x4GB 1333 DIMM's @1.5v occasionally x58 Sabertooth i7-970

Memory test seems to work fine. I have 6 DIMMS of GSKILL ripjaw F3-10666CL9D-8GBRL RAM set at 1.5v. The system seemed stable with only 3 DIMM's in (no BSOD's the entire day). Last night when I had 6 DIMM's in it BSOD'd often and this evening I put the other 3 DIMM's back in and the BSOD's resumed. memtest86+ seems to run fine but I'm going to leave it over night to be sure.

Is there a good method to diagnose the problem?

I've upped my voltages too to try and see if that would help:
uncore - 1.25v
ICH - 1.2v
DRAM BUS - 1.5v
CPU - 1.25

Factory clock settings etc. This happened a long while back but resolved itself. The problem started again recently so I went back and clean installed windows thinking it was a driver. All drivers are up to date and the BSOD seems to be in random executables (thus I'm thinking memory issues).
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  1. You don't need to raise the other voltages, if anything you should raise the DRAM Bus Voltage to 1.550V or 1.60V.

    I am assuming you have a triple channel motherboard?

    You may need to exchange for a hex channel memory kit, which is 6 modules, tested, and guaranteed to work together in the same system.

    For memtest86+, you need to test one module at a time. Errors can be hidden if you have multiples installed.

    Keep us posted on the result.

    Thank you
    GSKILL SUPPORT
  2. I have the DRAM bus voltage raised to 1.550v. Yes, I have triple channel and this system was table for several years, only recently has it become unstable.

    I will attempt to test modules one at a time.

    New BSOD today:
    crash dump file: C:\Windows\Minidump\081412-17534-01.dmp
    This was probably caused by the following module: ntoskrnl.exe (nt+0x7F1C0)
    Bugcheck code: 0xA (0xD1, 0x2, 0x0, 0xFFFFF80002CB5B44)
    Error: IRQL_NOT_LESS_OR_EQUAL
    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 Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above.
    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 which cannot be identified at this time.
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