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Hooking up intake and exhaust fan

post #1 of 4
Thread Starter 
My friend gave me 2 80mm fans for my case, but the dont have conectors on them. Only a black and red wire. On my motherboard I only have two 3 pin conectors. One is for my CPU fan and the other my video card fan. I dont have any more slots of the fans (3 pin slots). How should I hook these up??
I was also thinking about hooking up 2 switches to turn the fans on and off. Is that easy? Any guides to doing this??
Red Rocket
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Red Rocket
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CPUMotherboardGraphicsRAM
AMD 7750 x2 at 3.1ghz Biostar TF560 A2+ NVIDIA 9400 GT Gskill 1 gig blue stick 
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Crappy 40 gig IDE Windows XP Pro Old CRT Antec 400w 
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post #2 of 4
Thread Starter 
I hooked both ground wires up to a ground wire on the power supply, and both positive wires up to the yellow wire on the power supply (the plug for cd-roms) and got nothing from these fans. I also tried the other ground and the red wire on the power supply and got nothing. But when I tried each fan by themselfs to those wires on the power supply they worked. I am sure no wire is touching (shorting) and I have ground to ground, and red to red (and I tried yellow) What happend???
Red Rocket
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CPUMotherboardGraphicsRAM
AMD 7750 x2 at 3.1ghz Biostar TF560 A2+ NVIDIA 9400 GT Gskill 1 gig blue stick 
Hard DriveOSMonitorPower
Crappy 40 gig IDE Windows XP Pro Old CRT Antec 400w 
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A red one 
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Red Rocket
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CPUMotherboardGraphicsRAM
AMD 7750 x2 at 3.1ghz Biostar TF560 A2+ NVIDIA 9400 GT Gskill 1 gig blue stick 
Hard DriveOSMonitorPower
Crappy 40 gig IDE Windows XP Pro Old CRT Antec 400w 
Case
A red one 
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post #3 of 4
Fans are possibly dead. Your friend needs a slap.
Finally Perfected
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Finally Perfected
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E8500@ 4.6Ghz @ 1.36V Gigabyte P45 Two Sapphire 4870's CFX 1066MHz Dominators 
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500GB and 160GB Windows XP Professional SP2 Samsung SyncMaster 2253bw Corsair 750watt 
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Antec 1200 G5 Rocketfish 
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post #4 of 4
Thread Starter 
Im going to beat the crap outa him then. I just dont get it though, they worked before I did all the wiring and I know I didnt short them out.

quick update
I just cut all the wires I soldered and hooked up the fan wires one fan at a time to the plug (black and yellow) and they both work. Just not when joined together. I dont get it?? Before they didnt even move the at all.
Edited by Brandon H. - 12/22/08 at 5:29pm
Red Rocket
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 7750 x2 at 3.1ghz Biostar TF560 A2+ NVIDIA 9400 GT Gskill 1 gig blue stick 
Hard DriveOSMonitorPower
Crappy 40 gig IDE Windows XP Pro Old CRT Antec 400w 
Case
A red one 
  hide details  
Reply
Red Rocket
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD 7750 x2 at 3.1ghz Biostar TF560 A2+ NVIDIA 9400 GT Gskill 1 gig blue stick 
Hard DriveOSMonitorPower
Crappy 40 gig IDE Windows XP Pro Old CRT Antec 400w 
Case
A red one 
  hide details  
Reply
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