Slowing down the fanmate

netpro · Post by **netpro** » Thu Mar 31, 2005 8:31 am

Hey all!

Is there any easy way of making the zalman fanmate produce a little less voltage?

My zalman is a little bit too noisy as it is now.. Would the zalman fan spin at lower voltages?

I
ve tried slowing it down further with SpeedFan, but it just stops spinning.

Thanks!

Uberapan · Post by **Uberapan** » Thu Mar 31, 2005 8:39 am

I put two of them in series to lower the voltage a bit more. Note that it doesn't do as much as you'd suspect, but it does help a little. Using speedfan should give similar results though. Perhaps you should simply get a fan that is more quiet.

Post by **NeilBlanchard** » Thu Mar 31, 2005 8:42 am

Hello:

Voltage is voltage -- if the fan stops with SpeedFan, then it'll stop with a controller that can go below 5v. And if the Zalman fan is too noisy at 5v, then I would look at replacing the fan. What size it it?

netpro · Post by **netpro** » Thu Mar 31, 2005 8:59 am

Hi!

The size of the fan is 92 I think, not quite sure..

I actually just opened a new thread about changing the fan in it, but thought I might give lower volage a shot first.

The fan-swap thread is in the CPU cooling forum.

Thanks!

Jan Kivar · Post by **Jan Kivar** » Tue Apr 05, 2005 4:52 am

Power the Fan Mate from 5V rail; it outputs ~3.5V. Or use two Fan Mates (or a Fan Mate and another fan controller), if you need to tweak the fan between 3.5-5V. Here's how to do it.

Cheers,

Jan

cpemma · Post by **cpemma** » Wed Apr 06, 2005 12:03 pm

Rather than buy 2 Fanmates, a cheaper option is to put a 1N4001 diode or two in series with the output; instead of 5V-10.5V you'll get about 0.75V less per diode at both ends of the range. So 2 diodes will give you a 3.5V-9V control range.