Multiple BSOD's, most recently IRQL_NOT_LESS_OR_EQUAL

Ok, Optiplex 7010, Win7pro, inherited machine from wife's work.

Several things added, but blue screens only started showing up semi-recently.

Quick notes (but remember, BSOD was only recent):
Added GTX750 video card
Added Memory (and taken away trying to fault isolate this) see below. Memory verified by Kingston to be compatible.
Changed PSU
Added Asus USB-AC56 adapter
Tried using only USB2.0 and mixture of USB3.0

About the memory: I've tried 24GB (using a combination of new memory sticks and old), 16GB (Just new memory sticks), and 8GB (using original memory sticks) and still get BSOD.

I used to trigger it by using TestLimit64 to trigger paging by using memory, but that doesn't do it anylonger.

BSOD collector zip uploaded.

THANKS!!!!!!!!!!!!!!!!!!!!!!

{crickets}

However I reinstalled Win7pro. Pretty much the only thing that worked so far, and the only thing that made sense given how many weird places the BSOD minidumps seemed to indicate the problem originated. *dazed*