Hey there
as per Microsoft KB, the error in evento log "may" be unrelated. My best and first guess would be ram.
Troubleshoot these first:
Is the memory kit on the Board QVL?
Do you have Memory Context Restore enabled? (Disable it)
Disable EXPO to further troubleshoot.
The critical one, Kernel Power, is you powering the system down manually. So I assume you are forcing shutdown as it freezes completely. Please describe the freezes, is it a still screen or gray screen? Completely black and off?
Lastly: You haven't mentioned your power supply, both the GPU and CPU are very power hungry, I would at least put something around of... 1000Watts Gold/Platinum
If you have a lesser PSU, like 750 or 850, try to enable ECO mode on the CPU side and see if it helps somehow.
Troubleshooting is the key word, try everything fast, including removing the graphics card and using the iGPU, just in case you have to RMA anything.
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Cause
These 10016 events are recorded when Microsoft components try to access DCOM components without the required permissions. In this case, this behavior is expected and by design.
Workaround
These events can be safely ignored because they don't adversely affect functionality and are by design. It's the recommend action for these events.
The Englishman