Ok, so I am very interested in overclocking my PNY GTX 460, as from what I have seen they overclock pretty dang good. My only issue is that I would really like access to fan speeds of over 70%. For some reason my cards fan will only go up to 70%! I have been doing quite a bit of research today and have found that you can modify the BIOS of the card to allow fan speed of over 70% (up to 100%). I have edited my stock rom with the 'fermi bios editor' program that I found out on the web and applied the bios to the card using nvflash (windows version). After updating the BIOS I reinstalled the drivers for my card but still.. no 100% fan speed. Should I be using a different program for the BIOS editing? What am I doing wrong?
I really don't think you'll need over 70% speed. If your card is anything at all like my EVGA, you'll run into artifacts well before temperatures become a big problem. My max stable OC stays below 60C at 58% fan speed, which is the maximum value at which it's not really audible over my other fans.
Well.. I have pretty much no idea how but somehow everything has magically fallen into place and I have 100% control of my fan now. From 0% to 100%. This has only taken me a matter of 4 hours.. but I suppose that just makes it more satisfying.
On to this overclocking business now.. What are you running at kajabla?
I O/C'ed an Evga GTX 460SC, stock 763/1526/950 to 840/1680/2000 without adding voltage. IncreasedFPS from29.1 to 35.1 in Unigine Heaven 2.5.
SLI'ed I get 67.9 FPS. Temps stay under 60C using a case side fan.
@Wiiings what's the fan speed at that temperature?
Mine's at the same clocks as Delroy's, 840/2000, and it runs around 58C in the winter and 62-3 in the summer (NYC). I usually run at 850, but for some reason I get artifacts specifically in SC2 (not other games), so I clock down when I get on a 2v2 kick.
Ok I did a little tinkering around and got my core up to 815mhz and my shaders are up to 1630. I moved a case fan in front of my card so I get a little more air moving across, it, temps dont go above 70c and fan doesn't go above 70%. My memory is still at 1800 though, if I change my memory speed at all I get mad artifacts and instability. Could this be due to the fact that my PNY card has no heatsink on the memory modules? Also, I bumped my voltages up to 987 (from 975) any advice/help?
Would you suggest staying at stock voltages? Is it safer in the longrun for my card? As far as fan speed goes I do have it up to 100%, I was reading somewhere the card is fine at 70c so I created a mild fan curve with afterburner as the fan gets pretty damn loud above ~80%. What temp would you suggest I keep this thing at? And any clue why I cant touch my memory speed?