Random ntoskernel.exe BSOD under varying conditions. Please help.

This BSOD blames Intel Management Engine Interface.

Code:

fffff880`0ad89618  fffff880`03133128Unable to load image \SystemRoot\system32\DRIVERS\HECIx64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for HECIx64.sys
*** ERROR: Module load completed but symbols could not be loaded for HECIx64.sys
 HECIx64+0xe128

This program comes bundled with the motherboards driver cd, but not anything necessary at all. You may easily delete it from Control Panel> Programs and Features.

It also indicates to cdd.dll.

Code:

fffff880`0ad890e8  fffff960`00644000Unable to load image \SystemRoot\System32\cdd.dll, Win32 error 0n2
*** WARNING: Unable to verify timestamp for cdd.dll
*** ERROR: Module load completed but symbols could not be loaded for cdd.dll
 cdd+0x4000

It is somehow associated with display. Either the driver or the GPU itself in question here.

Try the driver rollback, and stress test the Graphics Card using Furmark.
Video Card - Stress Test with Furmark

Your crash dumps are not showing any finite probable cause.

Test your RAM modules for possible errors.
How to Test and Diagnose RAM Issues with Memtest86+
Run memtest for at least 8 passes, preferably overnight.

If memtest comes clean, enable Driver Verifier to monitor the drivers.
Driver Verifier - Enable and Disable
Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.

   Information

Why Driver Verifier:
It puts a stress on the drivers, ans so it makes the unstable drivers crash. Hopefully the driver that crashes is recorded in the memory dump.

How Can we know that DV is enabled:
It will make the system bit of slow, laggy.

   Warning

Before enabling DV, make it sure that you have earlier System restore points made in your computer. You can check it easily by using CCleaner looking at Tools > System Restore.

If there is no points, make a System Restore Point manually before enabling DV.

   Tip

• If you fail to get on the Desktop because of DV, Boot into Advanced Boot Options > Safe mode. Disable DV there. Now boot normally again, and try following the instruction of enabling DV again.
• If you cannot boot in Safe mode too, do a System Restore to a point you made earlier.

Let us know the results, with the subsequent crash dumps, if any.

Best to run them again :)

Until we sort your BSOD can you please set any overclocking to default as
Overclocking will cause system stability issues:

Code:

 
2: kd> !sysinfo cpuspeed
CPUID:        "Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz"
MaxSpeed:     3400
CurrentSpeed: 3502

Cheers

Dave