I have received (and just installed) my MSi GTX 970 (Gaming 4G). It's my first GPU upgrade since almost exactly 3 years, upgrading from my previous ASUS GTX 670 (my salute to you, 670, you served me very well).
So far it works well, but I have some questions...
According to some reviews I've read this card's fans simply don't spin at all unless the core's temperature reaches 60º (Celsius), after which it starts spinning. Now this is my first GPU since three years, things have changed (technology, components quality, etc). What I was doing with my 670 (and got used to do that like a reflex) as soon as I got to my desktop (after a system restart that is) was to start up EVGA Precision and manually adjust the fan speeds even for 2D mode.
That way, my 670 would have its fans spinning at 70% even in 2D mode and the card's temperature was sitting at a comfortable 35º or so (in 2D mode). When I knew I was about to play some games I would sometimes increase the speed to around 75%, or 80%+ during really hot and humid summer days (no conditioned air). So I had that tranquility of mind thing going on I guess, it wasn't exactly placebo either since I knew the numbers. I knew the fan speeds and I knew the temperatures for my card.
Now as I type this the fans indeed don't spin (I've looked). I know it's supposed to work that way and I shouldn't worry about it. But MSi do have their own Afterburner software for monitoring stuff (temps, fan, frequencies, etc). So I'm wondering if I should at least manually "force" the fans to spin at least a little bit even in 2D mode? Right now the temperature is 44º which is about 10º more than the temps of my 670 in 2D mode. Again... I guess that I shouldn't worry about it because "it can take it" and because "it was tested like that" in MSI's labs, etc. I mean the card is already factory-overlocked to start with.
And side note, this is the very first time I've bought a factory-OC'ed GPU, ever. I never did that before because I was always worried about instability issues. I guess I'm trusting MSi that they've tested everything anyway and - once more - I shouldn't worry about it being OC'ed. I've read some reviews as I mentioned earlier... I know that some reviewers managed "stable" OC's that were quite beyond that of the factory OC settings. I think that I'm just pampering my new baby here... considering the amount of money I spent on that beast is also a reason to do so (not to mention that I only upgrade my GPUs once every three years or so). Maybe I'm worrying about things that I really shouldn't even think about.
So what do you guys recommend about the fans? Should I force them to spin in 2D mode? Should I just leave everything as is? If it matters to mention I do not plan to overclock this card any further than it already is (even if I know reviews say and proved that it can still be OC'd considerably more). And, P.S/ I will upgrade the rest of my system (specs in signature) in the coming months (new CPU, motherboard and memory, etc).