Don't worry yourself about your own demise, it will come soon enough.
Not with my bigwater and 2 rads you wont
With 1.975v just for 2.5GHz, 2.8GHz is an impossibility for you.
If you look at price watch that card of yours is around $65-$80 depending on the amount of RAM, so considering it's used I'd say $65, but if you sell that aftermarket GPU heatsink with it, then easily $80-85 or so IMO.
BTW, I pushed 2.225 Vcore (the boards max lol) into trying to get 2.8GHz stable, wouldn't do it though.
If your getting blue screens I'd say it's because your RAM is pushed with timings tighter than it cares to run, either that or you are severely undervolting your CPU, but I've never got a BSOD from a CPU being unstable, only memory.
What kind of idle and load temps are you getting at what speed on what voltage?
Are you prime95'ing these timings to make sure they are completely stable or just assuming it's stable cause it boots?
EDIT: BTW you should OC your CPU first to the point where you know exactly how fast it will run on the exact voltage, and making sure it can run prime95 for atleast 12 hours straight with no errors.
After that you can begin OC'ing the RAM which is a much more difficult task requiring a lot of patience and trial and error, much more than OC'ing the CPU.
Mines at 235x10.5 I think right now for 2.467, letting the RAM have time to burn in before I try pushing it more.