Corsair h50 liquid cooler more quiet?

Pilman

Honorable
Aug 2, 2012
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I am running a corsair h50 liquid cooler, bought it off a friend brand new, the fan is mounted to the back of the radiator in CPU fan, the actual pump or heatsink is connected to the sys fan. My system was running very quiet before and now the fan runs full speed, I think when I reset my bios that I disabled smart fan. I was told not to use smart fan as the pump needs to run 100 percent, does setting up smart fan affect the pump in any way if i it is connected to sys fan? It's the fan header near my PCI express port, the pump it's self seems to be relatively quiet and I get 26 c on idle, just don't think the fan needs to be running that loud.
 
I found these SMART FAN instructions on the BIOSTAR website.

Motherboard's Smartfan function will only support 4 Pin CPU fan.
3 Pin CPU fan will not be supported due to hardware support limitation.

For setting the Smartfan function by using 4 Pin CPU fan.
Press Delete key in POST screen to go to CMOS > Advanced > Smart Fan Configuration
Set CPU Smart Fan to Auto.
Due to each CPU fan has it's own characteristic, user can let BIOS to detect the best setting for the CPU fan.
Run Smart Fan Calibration, it will detect and provide Fan Ctrl Start value and Fan Ctrl Sensitive for user to put in manual mode.
User can define their own setting as well.
Also user can use Quiet or Performance in Control Mode by BIOS preset fan control function for quick setting.