I understand your concern and tips, but 93*C for a 470 is fine. I've been reading about 470 and 480. They are meant to run hot, and their throttling temperature is 105*C. A review of the 470 from 2010 showed that their 470 had 93*C like mine, and multiple people reported temperatures in the 90's with the blower cooling. I read (and was kinda funny) that someone had 2 fans blowing at a 470, and temperatures were the same in the 90's. I've also saw an nVidia interview about the 470, and someone from nVidia said that they're safe to run up until 105*C, and even at the maximum temperature they're expected to last for a couple of years. I don't think you're familiarised with old GPUs to know how durable some of them are to heat, I've had a 8800GT with a very small fan which used to get to 100*C in Crysis. This was the first version of the cooling, nVidia ordered all cards back from markets due to people being unhappy with the temps, and released the second version with a bigger fan. But still, that 8800GT would still work, but after some time I decided to mess with the GPU and accidentally installed a wrong bios. Card's bricked and didn't bothered to fix it. I had a 9600GT for replacement.