How to change CPU fan speeds

Thisi s my computer, more or less, but I've added an extra 1gb of ram, a 9600 GSO, and a new fully copper heat sink.

Got the new heat sink because CPU was running hot at 60-70C, and was too loud. New heat sink solves the sound problem, but it isn't much cooler.

I want to increase the fan speed from 800-1000 rpm to at least 2500 rpm. Few days ago I left computer on all night rendering video, and for some reason the fan speed was 2500 rpm, and cpu temp was around 45C, new records for me.

I want to do this manually, so it is always running cool and not 60-70C when idle..

hi wkw427, and welcome to sevenforums,

have you tried the speedfan program? one of the things it can do is to control (you guessed it) the speed of your fan.

or controlling your fan through the bios?

fan speed in my Bios only effects the case fan. I've done a few benchmarks when I got the copper heat sink with the case fan at high, and there was no noticeable change in temperature.
Speedfan did not work with the computer (case not cpu) before when I had XP.
As I am still in the process of reinstalling all my programs, I have not gotten to speedfan. But I've read that it doesn't work well with 7. I am using 32bit win7 professional, if it matters.
I've looked in advanced power settings, and no matter if I set cooling to active or passive, nothing happens. As far as I can tell.

How would I do that? Run speedfan under compatibility mode?
If it didn't work when I was running XP, I don't think it would work now..

Fan speeds dont change under vista compatibility, either.

wkw427 said:

Thisi s my computer, more or less, but I've added an extra 1gb of ram, a 9600 GSO, and a new fully copper heat sink.

Got the new heat sink because CPU was running hot at 60-70C, and was too loud. New heat sink solves the sound problem, but it isn't much cooler.

I want to increase the fan speed from 800-1000 rpm to at least 2500 rpm. Few days ago I left computer on all night rendering video, and for some reason the fan speed was 2500 rpm, and cpu temp was around 45C, new records for me.

I want to do this manually, so it is always running cool and not 60-70C when idle..

If your processor is running that hot at idle there is definately an underlying problem. The reason the original fan seemed loud is because the board automatically ramped up the RPM's of the fan because your CPU is running way too hot.

Are you certain that you used enough TIM "thermal interface material" when you installed the heat sink? Are you certain that the heatsink is attached to the motherboard correctly? It's easy to make a mistake when installing the heatsink because those push buttons don't always latch correctly.

I am positive. The first time that I noticed when it was louder was when my psu died about a year and a half ago. I had to take it into a computer shop for repairs. After the new psu, it always ran at around 60C.
Before that, I'm not sure what it ran at, because I always had speedfan to monitor my gpu on the task bar.