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40mm fan with a 4 pin connector?

post #1 of 6
Thread Starter 
I just got a lil 40mm fan for an experiment and it has a 4 pin connector, like the one on a stock Intel hs/fan kit. I was expecting it to have three pins like a case fan. I wanted to connect it to OPT Fan1 on my mobo. Do I need a converter of some sort or did I get the wrong type of fan?
Chuckle2Tits
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Chuckle2Tits
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post #2 of 6
It's fine. It should plug right in anyways. If you notice, the little slot on the 4 pin connector isn't centered so it can still be put on 3 pin connectors easily.
Immortal
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Immortal
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post #3 of 6
Thread Starter 
Ah, ok, thanks. I did notice that, but wasnt sure if I should try that. So the fourth pin is for what? Is it the individual rpm control for a cpu fan from the bios?
Chuckle2Tits
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Chuckle2Tits
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post #4 of 6
pwm management. it controls the fans rpm the 3rd is for measuring the rpms and 1st and 2nd are ground and 12v lead
Gobalr
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Gobalr
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post #5 of 6
Yup, check my pinouts references in my sig.
Once again...
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Once again...
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post #6 of 6
Thread Starter 
excellent, thanks guys.
that pinouts guide is very helpful so if pwm is not connected the fan just runs 100% - good to know
Chuckle2Tits
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CPUMotherboardGraphicsRAM
Core i7 920 2.66 45nm D0 Foxconn BloodRage x58 EVGA GTX 285 6 GB Corsair Dom. DDR3 1600 
Hard DriveOptical DriveOSMonitor
1x300 GB WD Velociraptor Asus 16/48 DVD/CD ROM SATA Windows 7 Pro 64 bit Viewsonic VX2255wmb 22" LCD 
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Logitech USB wired Silverstone Decathalon 850 PolymorphiX (PMX_v1s) ms optical, wired 
Mouse Pad
ancient piece of crap :P 
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Chuckle2Tits
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 2.66 45nm D0 Foxconn BloodRage x58 EVGA GTX 285 6 GB Corsair Dom. DDR3 1600 
Hard DriveOptical DriveOSMonitor
1x300 GB WD Velociraptor Asus 16/48 DVD/CD ROM SATA Windows 7 Pro 64 bit Viewsonic VX2255wmb 22" LCD 
KeyboardPowerCaseMouse
Logitech USB wired Silverstone Decathalon 850 PolymorphiX (PMX_v1s) ms optical, wired 
Mouse Pad
ancient piece of crap :P 
  hide details  
Reply
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