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Lamptron Touch multiple fans w/ random RPM?????

post #1 of 3
Thread Starter 
OK. I have a Lamptron Touch 30 watts per channel. I have been testing all of my fans to ensure each fan is at their rated RPM speed. I tested 4 Swiftech Helix 120mm and all tested near their rated 1800 rpm and I used 4 different channels on the Lamptron. I then connect all four fans to a 3 pin pcb and connected to 1 channel. The problem I am having is the RPM goes everywhere from 600, then 1500, then 800, then 1700 rpm. Its not the same as when 1 fan was connected to 1 channel and I was getting a consistent RPM reading. I know I am not going over the wattage as each Swiftech fan is rated at 3 watts per fan. So that only 12 watts going into a 30 watt channel. I also tested the 4 fans using the Bitfenix Alchemy 3 pin splitter and got the same inconsistent RPM reading. What am I missing here. I dont believe that I have a defective fan controller. Is it because each fan is giving different rpm signals???? If so, how if possible to rectify this. Thoughts?????
Edited by bustacap22 - 4/3/13 at 8:27pm
 
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post #2 of 3
Do your fan splitters send combine all three wires of all the fans? I'm not familiar with your splitters, but it sounds like the controller is getting multiple RPM readings. The way I solved this problem was by cutting the RPM sense wire on one side of my Y splitter. This means that only one fan can send RPM signal to the fan controller.
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post #3 of 3
Thread Starter 
Quote:
Originally Posted by Anthony20022 View Post

Do your fan splitters send combine all three wires of all the fans? I'm not familiar with your splitters, but it sounds like the controller is getting multiple RPM readings. The way I solved this problem was by cutting the RPM sense wire on one side of my Y splitter. This means that only one fan can send RPM signal to the fan controller.

I am using these:

http://www.frozencpu.com/products/14661/ele-987/3-Pin_Power_Distribution_PCB_3xWay_Block_MMT-PCB-3WAY.html

http://www.frozencpu.com/products/13982/cab-495/Bitfenix_Alchemy_Multisleeve_3-Pin_to_3x_3-Pin_Y_Cable_Splitter_-_60cm_-_Red_BFA-MSC-3F33F60RK-RP.html
 
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