Zalman CPU fan issues?

[csmaster2005]

ok guys, I just got my new computer put together.
I pulled the zalman from my previous build and it was working fine before, but now I have an issue.

My fan is this: http://www.newegg.com/Product/...p?Item=N82E16835118115

Now, when the computer first turns on, sometimes the fan is on, sometimes it isnt, it's random. If I give it a little push it'll start going, but low rpms. Also, the fan speed knob doesnt work correctly. If I start it at the lowest and start inceasing, it'll increase to ~800RPM but when it gets there, the more I increase the speed, it actually starts decreasing.

Anywyas, that was all before I installed vista.
Now I have it isntalled, and sometimes the fan comes on, but for the most part the fan is completely off.

Not sure where to go from here... any ideas?

 

[csmaster2005]

After some more tests, I noticed the fan only comes on when cpu temperature gets past 30 degrees. And even so, it is still low rpms, and I cant get it to speed up, and the adjuster knob still doesnt respond correctly.
Any ideas? I'd liike the fan to always be on atleast partially.

 

[Juno]

i believe there's a program where you can adjust fan speeds. a program called speedfan or something.

i'm in love with my zalman cnps9700.

 

[Paperdoc]

New computer? That is the clue. In many (mine included) there is a place in the BIOS Setup screens where you take control of cooling fans. At the least there will be settings for the CPU fan and Chassis Fan, maybe even for a third. In each case the mobo sensors and the CPU's sensor are monitored by the BIOS, and it then controls voltage outputs to the fans according to how you set them up.

For each cooling system you usually have two settings to play with - the low temperature at which the fan just starts to come on, and the high temperature at which the fan should be running at full speed. Above this temp makes no difference - fan is still at top speed.

So, you can do this either of two ways. If you want the motherboard to do the work, you set your Zalman's controller to full speed, and then enter BIOS settings to let it vary the fan speed according to the temp. (Remember, separate set-ups for the CPU and the case cooling fans.) Do NOT set your Zalman controller down. At low temps the BIOS system will send out reduced voltages, and then your Zalman controller reduces it further and the fan runs too slow, or maybe even can't start.

The second way is to tell the BIOS to butt out and let you set the speed of your Zalman fan the way you want with its own controller, just like you used to do. To do this, go into the BIOS and, for the CPU fan speed only (you don't have a manual controller for the case fan), set very low temperatures for the turn-on and full-speed conditions. Say, turn on at 0 degrees and full speed at 5 degrees. Then the BIOS will always put out full voltage, and your Zalman controller can do its thing unimpeded.