Program to substantially slow GPU fan speed?

[Funky_Junk]

Hi,

I'm looking for a program that can substantially slow down the fan speed on my 7800GT. I know ntune and riva tuner are capable of slowing the fan down to like 50%. However, I am looking for something that can slow it down to like 5% (like what speedfan does for case fans). Does anyone know of a program that can do this?

 

[Forceman]

Rivatuner should be able to take it all the way down - it can on my 8800 in any case. Maybe it's a 7800 limitation?

 

[graysky]

+1 for rivatuner