Windows 10: Keep bluescreening on new PC build

Hello anyone who may be willing to helpAs the title says, I just build a new gaming PC for my wife. It's not my first rodeo, but I've never had issues like this before so I am stumped.Every time I start the PC running windows 10 pro I immediately get one of the following BSODs after logging in or even before:IRQL_NOT_LESS_OR_EQUALDRIVER_OVERRAN_STACK_BUFFERATTEMPTED_EXECUTE_OF_NONEXECUTE_MEMORYCRITIAL_PROCESS_DIED0xc000021aUsually I get the IRQL error first, then it restarts and gives me one of the others, and then finally the last one, just the error code 0xc000021a.Also, I can't get the er

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New Windows 10 PC Bluescreens when idle

I have a brand new build, Windows 10, Asus Z170-P motherboard, 12gb corsair ddr4, GTX 950, 1TB hard drive. Whenever I leave it idle it seems to bluescreen. This can happen after 20-30 minutes or not for an hour or more. Usually when I'm using it actively playing games it is fine. The bluescreen bug check string is various things from MEMORY_MANAGEMENT, IRQL_NOT_LESS_OR_EQUAL, BAD_POOL_HEADER and a few others.

The minidumps for all the recent bluescreens are here:
https://drive.google.com/file/d/0B-wOckrdsYnYWG5RYlVOMF9xaTg/view?usp=sharing

Things I've tried:

• Updating all my drivers, particularly the asus chipset drivers
  
• Running Memtest overnight (7 passes in 9 hours, no issues found)
  
• chkdisk (via windows 10 tools)
  

I really am stuck now. I took it back to the store where I bought all the parts and they said they tested it and it's all fine (they updated the chipset drivers again even though I had already done so) and for them it was running for 2 hours with no bluescreen.

If anyone has suggestions I'd be really grateful because I've run out of ideas!

UPDATE

Memory timings from CPU-Z added below:

 

New System build Suggestions

just another build suggestion to consider- https://pcpartpicker.com/list/HcvDvV

 

PC Build Steps

Ok just because I like steps i am going to create some steps. Please give me the stamp of approval/disapproval

• Install system in case
  • Remember to connect SSD and optical to same SATA ports on motherboard
• Turn on PC
• setup HDD
• run blend test in prime95 for 30-60 min
  • run realtemp at the same time

• While in Prime95 test
  • if CPU goes above 70c in RealTemp, I have a leaky CPU
  • if my system locks up or blue screens, there is an instability in the system somewhere
  • if my system does not lock up or blue screen, my CPU is not damaged and I am in the clear!

What do you guys think??