Pro/Forums - View Single Post - Fan rpm signals of video cards and water cooling

jaydee · 07-04-2007, 07:36 PM

Unplug the fan and start the computer and see if video comes up. If it does your good to go and turn the comp off and re-plug it in. If no video then probably will not work. As long as the heat sink is attached you won't fry the card. If worried point a fan at the card during the test.

Pretty good chance the 4 pins are for RPM monitoring for voltage adjustment so the card can turn the fan down and up as needed. My Radeon X1950Pro runs at 40% most of the time for example.

07-04-2007, 07:36 PM	#5
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Re: Fan rpm signals of video cards and water cooling Unplug the fan and start the computer and see if video comes up. If it does your good to go and turn the comp off and re-plug it in. If no video then probably will not work. As long as the heat sink is attached you won't fry the card. If worried point a fan at the card during the test. Pretty good chance the 4 pins are for RPM monitoring for voltage adjustment so the card can turn the fan down and up as needed. My Radeon X1950Pro runs at 40% most of the time for example.