Debugging :: Various BSODs Relating To Ntoskrnl And Others While Gaming

For a long time now - over a year - I've been getting seemingly random blue-screens, 90% of the time during playing video games. It doesn't ALWAYS happen, and sometimes it goes days without happening, but other times it is nearly every time I play for longer than 15 minutes.

I upgraded several months ago to Windows 8 Pro and the problem persisted. Since this all started, I upgraded my entire computer including new motherboard, CPU and RAM. Since this usually only happened during playing video games, I thought the video card was the culprit (as unlikely as that is), but after upgrading my video card, the same problem persists.

I checked the hard-disk for errors using chkdsk, WD Lifeguard - all with no errors. I ran sfc /scannow and it said it found uncorrectable errors, and after following instructions from this forum, finally got it to say it found no errors.

Basically the only thing I haven't done is reformat my system, and replace the only remaining original hardware left, my 2 HDDs and my PSU.