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| General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums. |
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07-02-2007, 08:43 AM
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#1 |
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Cooling Neophyte
Join Date: Jun 2003
Location: Washington DC
Posts: 28
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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 ?
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07-02-2007, 01:54 PM
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#2 |
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Pro/Staff
Join Date: Oct 2001
Location: Klamath Falls, OR
Posts: 1,439
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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.
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07-02-2007, 02:02 PM
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#3 |
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Cooling Neophyte
Join Date: Jun 2003
Location: Washington DC
Posts: 28
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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...
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07-02-2007, 03:14 PM
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#4 | |
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Cooling Savant
Join Date: Jun 2005
Location: Skokie, Illinois
Posts: 322
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Re: Fan rpm signals of video cards and water cooling
Quote:
What video card,and what connector? Pickie/linkie please.
__________________
My new rig.... Intel SE440BX-3, PIII 550 (@ 680) MX440 275/332 (@ 350/400) and 3DFX Voodo 5 5500 160/160 (@180/180) Two Opticals and 120 gigs (w/28gigs in RAID0) on 4 Maxstors |
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07-04-2007, 07:36 PM
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#5 |
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Put up or Shut Up
Join Date: Dec 2001
Location: Spokane WA
Posts: 6,506
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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. |
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07-05-2007, 01:32 AM
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#6 |
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Cooling Neophyte
Join Date: Nov 2003
Location: huh?
Posts: 85
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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.
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07-09-2007, 09:28 AM
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#7 |
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Cooling Neophyte
Join Date: Jun 2003
Location: Washington DC
Posts: 28
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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.
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