It didn't work or you didn't take the time to set it up properly?
I use SpeedFan with fan mate for my GPU. I run it to a fan header on my motherboard and adjust the GPU fan based on my cpu temp. Combining the two gives me excellent control over minimum and maximum GPU fan speed and the ability to control fan speed based on load. When gaming the cpu temp goes up so I have it set up to increase both the CPU and GPU fans at the same time.
Not a perfect solution but it keeps things quiet when mindlessly surfing and keeps it cool when gaming. SpeedFan 4.32 works with most modern motherboards.