The Wonderful "Display driver nvlddmkm stopped responding and has successfully recovered" Issue

Greetings. This is going to be a pretty long post of what I've done (I'll probably forget some of it) and a bunch of other stuff. I've been fighting a VERY persistent "Display driver nvlddmkm stopped responding and has successfully recovered" issue for almost 3 months now. It has been driving me absolutely crazy. I'll start by listing some detailed specs off first:

• 
  Intel Core i5-4690 3.5GHz
  EVGA GTX 970 Superclocked ACX 2.0
  ASUS H97-PLUS
  Corsair Vengeance 8GB 2x4GB DDR3
  Corsair HX Series HX650 650W Power Supply
  Windows 7 SP1 64bit

• 
  These matter less, putting them here anyway
  Plantronics Gamecom headset
  Deathadder 2013 mouse
  Cooler Master Hyper 212 EVO CPU Cooler
  Lite-on CD/DVD drive
  Crucial MX100 256GB SSD
  Seagate Barracuda 1TB HD

My display driver crashes once every couple of days, maybe 2-3 times a week, completely randomly, and only while I'm playing games. I recently thought I figured it out. I put in a GTX 570 that a friend gave me and my problem disappeared for a week and a half so I contacted EVGA and had them RMA my 970 thinking it was that's what was causing it. While the GTX 970 was away, I had the GTX 570 in my computer for 36 days: from June 1st until July 7th and I did not experience one display driver crash, everything was fine, no issues at all.

My new replacement card arrived from EVGA on Tuesday and I put it in. Everything was fine until earlier today when the same thing that was happening before happened again. So now it's the same issue as before, brand new 970. I purchased my original 970, along with all the other components, in the beginning of January and everything was fine until around April whenever this problem started.

At this point I'm thinking it has something to do with the GTX 970. I don't think the second card is also defective so at this point I'm thinking it may be my power supply. 650w should be enough for the system but maybe something within it is defective.

Now, onto the Event Viewer.

There were 52 issues in Event Viewer that all occurred 5 seconds before the display driver stopped responding and recovered. Every entry is the same except for the last line on every other entry. The message that was the same is:

Source: nvlddmkm
EventID: 13

The description for Event ID 13 from source nvlddmkm cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

\Device\Video7

Click to expand...

Now, every even numbered message ended with the line:

Variable String to Large

Click to expand...

And now I'll list all the odd messages that vairied:

1. NVRM: Graphics TEX Exception on (GPC 0, TPC 0): TEX FORMAT
3. NVRM: Graphics TEX Exception on (GPC 0, TPC 0): TEX FORMAT
5. NVRM: Graphics TEX Exception on (GPC 0, TPC 1): TEX NACK / Page Fault
7. NVRM: Graphics TEX Exception on (GPC 0, TPC 1): TEX NACK / Page Fault
9. NVRM: Graphics TEX Exception on (GPC 0, TPC 2): TEX FORMAT
11. NVRM: Graphics TEX Exception on (GPC 0, TPC 2): TEX FORMAT
13. NVRM: Graphics TEX Exception on (GPC 1, TPC 0): TEX FORMAT
15. NVRM: Graphics TEX Exception on (GPC 1, TPC 0): TEX FORMAT
17. NVRM: Graphics TEX Exception on (GPC 1, TPC 1): TEX NACK / Page Fault
19. NVRM: Graphics TEX Exception on (GPC 1, TPC 1): TEX NACK / Page Fault
21. NVRM: Graphics TEX Exception on (GPC 1, TPC 2): TEX FORMAT
23. NVRM: Graphics TEX Exception on (GPC 1, TPC 2): TEX FORMAT
25. NVRM: Graphics TEX Exception on (GPC 2, TPC 0): TEX FORMAT
27. NVRM: Graphics TEX Exception on (GPC 2, TPC 0): TEX NACK / Page Fault
29. NVRM: Graphics TEX Exception on (GPC 2, TPC 1): TEX FORMAT
31. NVRM: Graphics TEX Exception on (GPC 2, TPC 1): TEX FORMAT
33. NVRM: Graphics TEX Exception on (GPC 2, TPC 2): TEX FORMAT
35. NVRM: Graphics TEX Exception on (GPC 2, TPC 2): TEX NACK / Page Fault
37. NVRM: Graphics TEX Exception on (GPC 3, TPC 0): TEX FORMAT
39. NVRM: Graphics TEX Exception on (GPC 3, TPC 0): TEX NACK / Page Fault
41. NVRM: Graphics TEX Exception on (GPC 3, TPC 1): TEX FORMAT
43. NVRM: Graphics TEX Exception on (GPC 3, TPC 1): TEX FORMAT
45. NVRM: Graphics TEX Exception on (GPC 3, TPC 2): TEX FORMAT
47. NVRM: Graphics TEX Exception on (GPC 3, TPC 2): TEX FORMAT
49. NVRM: Graphics TEX Exception on (GPC 3, TPC 3): TEX FORMAT
51. NVRM: Graphics TEX Exception on (GPC 3, TPC 3): TEX FORMAT

Click to expand...

After all those errors happened the "Display driver nvlddmkm stopped responding and has successfully recovered" occurred.

So now it's on to things I have tried with no results:

• 
  Set the processor option to GeForce GTX 970 in the NVIDIA Control Panel
  did a MEMTEST over night, RAM passed with 0 errors after 10 hours
  set the Power Management mode to Prefer Maximum Performance in NVIDIA CP
  set the TDRDelay to 8 seconds using Microsoft's FIXITNOW option as well as setting it manually myself
  The latest graphics card drivers have always been installed. This error has occurred on 350.12, 352.86, 353.06, and 353.30
  I've also used DDU in safe mode to uninstall the drivers every time
  Nothing in my system is overclocked, everything is stock
  I've tried resetting the pagefile
  System File Checker was run
  Driver Verifier was run and caused no issues
  Someone recommended uninstall 2 random windows updates, that did nothing
  reformatted my PC

SO. At this point, I really don't know what could be causing it, but the list is narrowing, I guess. I was almost 100% certain that a different graphics card was going to fix it...but it didn't. So now it's down to PSU, RAM, Motherboard, or maybe the new graphics card they sent me actually is broken. I guess my next step is to replace this power supply with a spare 1000W Corsair that my friend said I could borrow.

Thanks for any help or suggestions.