Hi Gents, For the last 2 months I've been plagued with random black screens & outright crashes out of Windows. I initially thought it was my 7 year old PSU, swapped that for a new PSU - Corsair CX 750M (Not the best I know) still had the crashes. Updated old I5-3570K & GA77 Mobo to current build in my sig, still having the issues. Getting are now getting more frequent in Squad & Arma3. It seems that the crashes usually happen when GFX card is under particularly heavy load but not always. I've run Furmark and i'm getting the same issues, crashes happen anywhere between 2 -5 minutes of load being applied - Screen goes black & PC just shuts down, then restarts. I can also hear what I believe is Coil Whine when hit the space bar. Shortly after this I usually get Black Screen. GPU temps are around 70 - 75°C. I have also notice lately that front fan seems to be starting to rattle & stops, you have to flick it with your finger to get it going again. I have noticed as well that just before the Crash I sometimes get what as I can describe as a very mild Eggy Fart smell - (Don't know if that ones Me or the Dog!!) Does this sound like Zotac GTX 970 card is failing?