Case fan question

[THC]

I am wondering if it's ok to use variable speed fans when I'm using a motherboard (Abit TH7II-RAID) that controls the fan speed. Will this cause problems?
The motherboard also only has 3 fan-connectors (power, CPU, case), how do I connect more case fans than that if I need to?
Thanks!

[Hoser]

I think most motherboards can vary the fan speed if needed, so it shouldn't be a problem.

You'll usually only have one or two fans running off the motherboard connectors. One for the cpu fan and maybe one for the chipset fan. If you get a powerful cpu fan, you should get an adapter to run the fan off the normal power connectors. The fan could draw more power than the motherboard connector could provide.

Case fans run off the normal power connectors. They have a pass-through connector so that you can still plug something else in.

[Hiro]

http://www.outsideloop.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=olcomp&Product_Code=PAL8045T&Category_Code=cpufans

That is the CPU Fan I run. Its a great fan and connects directly to the power supply. Same with my 3 case fans...all of them run directly off the power supply.

However, if you do this, remember to have a large enough power supply to support your devices, board, processor, and fans.