If you're crashing after a complete reformat of Windows, BIOS update, various different video card versions, Driver Verifier being enabled however the bugcheck being 0x1A, etc... it's hardware for sure, especially considering it's a very new build. My guess is CPU as I said because of the Prime95 CPU fatal error, however, that may be because an incorrect BIOS settings, etc. Here's what I want you to do so we can narrow this down quite a bit:
1. Clear the CMOS and don't touch anything after you do that. Don't set your memory to its factory intended specs, just leave it as Auto, etc.
2. Use the system as you would regularly, if you BSOD, attach it here and I'll take a look to see what we're dealing with.
3. Are you ever crashing idle (just browsing internet, no games, etc.. or is it always playing games, videos, etc?). If it is, if you have onboard video, or possibly access to an older video card, give that a try.