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what options are there for variable speed fan control?

C

cowgod

Weaksauce
Joined
Jul 28, 2004
Messages
122
in my current case, i made a baybus that had a switch for each fan--in the middle position the fan is off, down is 7v, and up is 12v. It has worked fairly well for me, but i wanted something a little more elegant. i have seen the rheostat baybus kits where all you need to do is plug in your fans and you're good to go. these seem fairly nice.

one thing i read somewhere is that newer motherboards are equipped with some kind of technology that will control the fan speed for you based on the load of the system. does such a thing really exist? i am interested in getting an nforce4 sli setup, and i looked at the gigabyte one in detail on their website. i didn't see any mention of this technology. can someone help me out as to what can be done to control fan speeds so that when you are doing non-cpu intensive stuff, you don't have to put up with loud fans?
 
i was just commenting on the gigabyte motherboard because it is one of the first nforce4 sli enabled boards. i do like the fact that it is blue, however. i want to make an all blue computer. but anyway, we're getting off track. i checked out this speedfan program, and it looks to me as though hardware support is lacking for it. i may be wrong. does anyone know of motherboard manufacturers including an in-house program with their boards that does a similar thing? i know that the nforce4 will have ntune. here is a quote i found from tech-report.com:

The nTune software also has a monitoring tool to keep track of fan speeds and temperatures, plus a BIOS flash update tool that works inside of Windows. I'm curious to see whether NVIDIA can convince motherboard makers to support nTune; they tend to prefer to provide their own monitoring and tweaking software.
Click to expand...

so, it says that ntune can "keep track" of fan speeds, but that doesn't necessarily mean it can control them. also, it says motherboard makers may not support ntune. does that mean ntune won't work at all, or will it be like video cards including their own drivers that are often inferior to the nvidia reference drivers?
 
If your motherboard doesn't support variable fan speed based on CPU load, you might want to go the simple route and go with a temperature-based fan controller, i.e. the hotter the case gets, the faster the fan goes. Temperature usually follows CPU load pretty reliably.
 
A Vantec NXP-201 should fit your bill. Just connect the fans up to the thing, twiddle the knobs (4) and then your good to go. Good buy, like 30 at the egg
 
so i guess this means no one has heard whether or not nforce4 will support this feature... so, assuming it doesn't, is it possible to use a 3 pin y adapter on one of these baybuses so one switch can control more than one fan? the case i'm getting has 5 case fans.
 
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