Fan rpm signals of video cards and water cooling
 

Can you just disconnect a video card fan with its rpm signals and put on a water cooling block without problems ? Does the card not protest when it looses its fan rpm signals ? :eek:

Re: Fan rpm signals of video cards and water cooling
 

It usually works just fine. I say usually, because it has worked in all the cases I have tried, but there may be a card that it wouldn't work upon.

Re: Fan rpm signals of video cards and water cooling
 

Were these video cards with 2 pin fan connectors ? The one I'm looking at has a 4 pin connector...

Re: Fan rpm signals of video cards and water cooling
 

Ok. let's stop guessing.
What video card,and what connector?
Pickie/linkie please.

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.

Re: Fan rpm signals of video cards and water cooling
 

Didn't have any problems for my 8800 or the older cards so far when i put them on watercooling.

Re: Fan rpm signals of video cards and water cooling
 

It seems to work. I get video from the card even though there is no tach signal from the fan. The video card is a MSI nVidia GeForce 7900GTX, it is a while ago I started setting this up. Unfortunately I have problems with my processor waterblock, the seating was off because of the pull on the tubes leading to the video card. so i have to re-seat my processor and see if it fixes the freezes I have been getting. :hammer: