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I have a few questions regarding molex fan connectors

Last response: in Components
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September 10, 2011 1:08:31 AM

So i have 5 case fans, all of which use 4 pin molex, but no molex devices to plug into after the fan connectors. i had to use adapters for my sata hard drives and vid card power plugs from molex instead of using straight sata power, or GPU 6 pin. it works, but my case is littered with cables and adapters. i was wonder if i can just hook up all the fans to one another and just use one adapted molex plug after all the fans? or how many in a row you think i can safely use?
September 10, 2011 1:16:57 AM

well, after some research, i discovered that molex is not very descriptive. in all the cases i used molex, sub in "4 pin"
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September 10, 2011 1:20:59 AM

Yes, you can plug them all together. Fans typically don't take much power. Maybe a couple of watts for each normal fan vs. 10 watts or so for one hard drive.

I did the same thing with 4 fans in my case, plugged all the adapters together and plugged into one connector from the power supply. The whole mess hides out of sight behind the hard drive cage.
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September 10, 2011 1:27:02 AM

i should have stated that I have 4 120 mm and 1 200 mm. still be fine? also, dont you have to plug something into the back side of the 4 pin fan connector?
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a b ) Power supply
September 10, 2011 1:37:15 AM

I don't know for sure(disclaimer), but Wiki says 11 A/pin is the current limit. Does that mean you can run 44A @12V through a Molex? If so, or even if it's 11A@12v for the whole connector, then 5 case fans won't be a problem.

Edit: You certainly don't have to plug anything into the extension on the Molex.
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September 10, 2011 6:27:23 AM

you were right cuecue, you indeed dont have to plug anything into the back of the fan molex conector for it to work. I dont know why, but the past 2 times ive tried it, it didnt work. apparently i was doing somehting wrong, cause its working this time around. but damn, removing all those sata to molex adapters and gpu 6 pin to molex connectors, along with wiser cable management, cleared up so much clutter in my case. thx for the input guys.
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September 10, 2011 6:43:44 AM

Chaining fans directly from a good PSU shouldn't be a problem. Just be sure to never do that with a mobo fan connection. Even if by some miracle you could run all those fans off of a single mobo connection, the fan start-up load would probably fry the board.
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September 25, 2011 2:43:40 AM

@ thrakazog: yea, i dispersed the 5 molex fan connector over 3 molex plugs just to be safe
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