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Msi GTS 450 Fan control

post #1 of 4
Thread Starter 
I want to lower my GPU fan speed. In Afterburner the lowest it lets me is 40%. I called MSI tech support for help -> they said the guy who might know something is on vacation rolleyes.gif


I've unplugged the fan and the card still powers on fine. So what I like to do, if I can't change anything with Afterburner, is plug the fan into a fan header - but I'm unfamiliar with the wiring of GPUs

What type connection is this?


connect1.jpg
connect2.jpg

I believe the Fan uses Pwm - so is there a 4 pin to 3 pin converter?
Or how to plug in a pwm fan to the Chassis Fan header?
Any ideas on the amps on this fan?



Any help on how to make this work is appreciated.

Thanks,

Jyk
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post #2 of 4
Quote:
Originally Posted by jyk;13462656 
I want to lower my GPU fan speed. In Afterburner the lowest it lets me is 40%. I called MSI tech support for help -> they said the guy who might know something is on vacation rolleyes.gif


I've unplugged the fan and the card still powers on fine. So what I like to do, if I can't change anything with Afterburner, is plug the fan into a fan header - but I'm unfamiliar with the wiring of GPUs

What type connection is this?



I believe the Fan uses Pwm - so is there a 4 pin to 3 pin converter?
Or how to plug in a pwm fan to the Chassis Fan header?
Any ideas on the amps on this fan?



Any help on how to make this work is appreciated.

Thanks,

Jyk

Have you tried NVControl Panel? I know it has a fan control feature that should work...

Edit: It is PWM, and should be very low wattage- it will easily go on a mobo or fan controller header.
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post #3 of 4
Usually there is a highest and lowest setting that cards have to prevent absolute death. My old GTS450 on went to 30% on the low end and 70% on the high end. Try Nvidia control panel, if that doesn't work you can try speedfan or HW monitor pro.
post #4 of 4
Thread Starter 
Quote:
Originally Posted by InerTia*;13466664 
Usually there is a highest and lowest setting that cards have to prevent absolute death. My old GTS450 on went to 30% on the low end and 70% on the high end. Try Nvidia control panel, if that doesn't work you can try speedfan or HW monitor pro.

Yeah, the NV Control Panel won't let me drop it lower. Also, I've been in email contact with Alfredo Comparetti (designer of Speedfan), to date, Speedfan doesn't register this GPU fan... I've looked at using NiBiToR to edit the BIOS of the GTS450 - but I'm considering that a last resort high risk approach, since all I need is to drop the fan speed, not super-overclock the GPU. Any ideas on how to check the wattage/amps of this fan to make sure plugging this in doesn't burn out my fan headers?

Jyk
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