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Fan controller + 3-Pin Power Distribution PCB (cutting RPM pins?)

post #1 of 6
Thread Starter 
Hey guys,

I am currently building my first serious rig and have a quick question regarding fan electronics.

I plan to use a fan controller along with several of these ModMyToys 3-Pin Power Distribution PCB's (link). I understand that when splitting fan cables, its preferable to cut the RPM cable on all but one of the fans (to avoid crazy RPM readings)...

What I am wondering is will be okay/safe to (instead) remove the RPM pins on each ModMyToys PCB? To me it seems like it would be exactly the same as cutting the cables from the fans, but I'll be modifying a few $3 PCB's instead of many $20 fans. But with no real experience with electronic circuitry, I would love confirmation from the community before proceeding.

Thanks smile.gif
Edited by FloatingPoint - 3/31/13 at 12:51am
post #2 of 6
I'm not familiar with that splitter, but it seems like it should work. It should be identical to cutting the fan cables, just make sure you remove the RPM pins. I used Y-splitters in my rig, so I was able to cut that instead of the fans, but this seems to be the same concept.
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FRHKBOX
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Raspberry Pi
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CPUMotherboardGraphicsRAM
AMD FX-8350 @4.2GHz Gigabyte GA-990FXA-UD3 XFX R7950 Double D 4x4GB Samsung MV-3V4G3/US 
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OCZ Vertex 4 128GB OCZ Vertex 4 64GB Western Digital Caviar Black 1TB Lite-On iHAS224-06 
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CoolingCoolingCoolingOS
2x Corsair AF120 High Performance Antec 200mm and 120mm fans Xigmatek 120mm fan Windows 10 Pro x64 
OSOSMonitorKeyboard
Mint 17 (VM) Mac OS 10.9 Mavericks 2x Asus VS247H-P Logitech G510 
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post #3 of 6
The board appears to be slid into a 'C' back plate. You may be able to open it and disconnect the pins in there. Might look cleaner than trying to cut them off.

Another option would be to remove the pin from plug on wire, fold it back on the fan lead and tape / heatshrink over it. If you want to use the fan with rpm at a later date you just plug it back in. wink.gif
post #4 of 6
Thread Starter 
Hey Anthony20022 and doyll. Once the PCB's arrive, I'll check out the underside and see what can be done. Thanks for your suggestions.
post #5 of 6
To be honest you will most likely find that only 1 fan header has the rpm wired and the others are terminated on a pcb like that, the ones I've had have been...
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post #6 of 6
Thread Starter 
Thanks liamstears, that would be ideal! ill check and report back when they arrive on the 8th.
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