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Corsair CAFA70 Fan Speed Questions

post #1 of 4
Thread Starter 
I've look through Corsair's website to find an answer, but found nothing useful.. I've been looking at buying the Corsair cooler, but didn't understand how the fans work. I see it advertises "two speeds" 1600 or 2000 - does this just use a resistor extension to hold them at these speeds plugged into the 3-pin connector wire? Do both fan plug into the CPU FAN header, PWR Header or what?

What about slowing them down further? Can you bypass using the resistors and plug the fan's 3 pin wire directly into a motherboard Chassis 3 pin fan header and use the BIOS to set the fan speeds?

Has anyone tried? Or had problems?

thanks,

Jyk
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post #2 of 4
You can plug them into a fan controller or reduce motherboard 3 pin voltage to cause the fans to spin slower. Corsair will use a little device that reduces power to slow down the fan speed.
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post #3 of 4
Quote:
Originally Posted by jyk View Post
I've look through Corsair's website to find an answer, but found nothing useful.. I've been looking at buying the Corsair cooler, but didn't understand how the fans work. I see it advertises "two speeds" 1600 or 2000 - does this just use a resistor extension to hold them at these speeds plugged into the 3-pin connector wire? Do both fan plug into the CPU FAN header, PWR Header or what?

What about slowing them down further? Can you bypass using the resistors and plug the fan's 3 pin wire directly into a motherboard Chassis 3 pin fan header and use the BIOS to set the fan speeds?

Has anyone tried? Or had problems?

thanks,

Jyk
The two fan speeds that are advised are the two fan speeds that can be obtained with corsair's included extension cable. The two resistor extension cables that are included slow the fan speed down to 1600 rpm. Plugging the fans directly into the motherboard (one would go in the cpu fan plug on the mobo, the other in another fan plugin on your mobo) run the fans at 2000 rpm. These fan are 3 pin plug and do not include the fourth pin ( which would make them PWN fans ) so you will not be able to adjust the fan speed through the bios. However, you can upgrade these fans if you would like. Overall, I love the a70. Its a great design and i imagine it would be even better with better fans. It keeps me 2500k @ 4.5 well within limitations. Hope these answered your questions.
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Sim Racing
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post #4 of 4
Thread Starter 
Quote:
Originally Posted by GMcDougal View Post
... These fan are 3 pin plug and do not include the fourth pin ( which would make them PWN fans ) so you will not be able to adjust the fan speed through the bios...
Wait, I already can adjust my 3 pin case fans through the BIOS, ASRock Overclock Tuner, and/or Speedfan -> What's the reason why these wouldn't? Or since the others work, the A70's would too?

thanks,

Jyk
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