I just put an Accelero S1v2 on my 8800GT last week. It took about 15 minutes to install. Best thing I have done for my system in a long time. I dont have a fan on it because I am using an Antec 900 case with a True Ex with 2 fans on it. With all fans on low except the top exhaust fan, my 8800GT will idle at 38C and only goes up to 49C fully loaded. That is with 24.5C ambient temperatures. It is great not having to crank up the stock 8800GT fan and listen to it while playing games or just folding on your GPU. I recomend it, it works wonders for an 8800GT.