I need a scheme to run my fans

CactusDude123 · Sep 20, 2014

Hey everyone, this question was probably asked bilions of times before, but I didn't find anything informative for me to follow.
So, my question is something like this: I just bought 6 Fractal Design Silence series R2 120mm fans, and I would like to use them in my case and on my CM 212 EVO CPU cooler. My mobo is an MSI 870S-C45 (FX), but it only has 2 3-pin fan headers and 1 4-pin CPU fan header. I don't really need to control my fans, since noise is not a priority and they can run full speed all the time (I won't care, I'm a headphone user, haha) I will use 4 fans in the case itself (I have 2 pre-installed in the case and I need to connect them too!), and 2 on the CPU cooler, so, what scheme and what items should I buy and use, to run the case fans on the 2 3-pin headers and the 2 CPU cooler fans on the 1 4-pin CPU fan header on my mobo.
Thanks for future answers.

mamasan2000 · Sep 20, 2014

Easiest would be to get a fan controller. With how ever many connections you need. They cost around 15-40$ depending on configuration etc.
Other thing could be to get converters from Molex to 4-pin-cables. If those still exist.

http://www.nzxt.com/product/detail/129-sentry-mix-2-fan-control

http://files.cablewholesale.com/hires/11w3-05206.jpg

byza · Sep 20, 2014

Well you could use splitters from the motherboard
http://www.amazon.com/Silverstone-Tek-Sleeved-Splitter-CPF02/dp/B00HJOJS9O/ref=sr_1_2?s=pc&ie=UTF8&qid=1411246770&sr=1-2&keywords=fan+splitter
Or you could power the fans straight from the molex connectors
http://www.amazon.com/Phobya-4-Pin-3-Pin-Splitter-Connection/dp/B007S3T4O0/ref=sr_1_2?s=electronics&ie=UTF8&qid=1411246715&sr=1-2&keywords=molex+to+fan
or
http://www.amazon.com/BitFenix-Alchemy-Multisleeve-Triple-Adapter/dp/B006VK9JZK/ref=sr_1_5?s=electronics&ie=UTF8&qid=1411246715&sr=1-5&keywords=molex+to+fan
Or use a fan controller
http://www.amazon.com/SENTRY-Accessories-5-25-Inch-Screen-Controller/dp/B002L16OMO/ref=sr_1_1?s=electronics&ie=UTF8&qid=1411246935&sr=1-1&keywords=fan+controller

Also there is not a lot of reason to put two fans on the EVO, it doesn't really improve performance.

clutchc · Sep 20, 2014

If the above solution isn't to your liking, you could use fan splitters on the MB fan headers. You can safely use 2 fans per header.
4 pin: http://www.newegg.com/Product/Product.aspx?Item=N82E16812162026
3 pin: http://www.newegg.com/Product/Product.aspx?Item=N82E16812200855&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Internal+Power+Cables-_-N82E16812200855&gclid=CNKwwNfZ8MACFcRcMgoduGIAeQ

CactusDude123 · Sep 20, 2014

Thank you very much for some quick and informative answers!!!

CactusDude123 · Sep 22, 2014

Ok, so I exchanged my fans to some 4-pin ones. But I can't find any good 4-pin 3 way splitters. My other question would be: If I would plug in 2 fans in 1 Y splitter, and then plug another splitter, into the splitter (which I would connect a fan in) and then plug the splitter intro the MB, would it work?

clutchc · Sep 22, 2014

Putting 3 fans on one MB fan header is getting close to more than the load the header is designed for (depending on the amperage of the fans). And remember, a DC motor will have a lot more than its running current at the moment of starting. For a brief instant the locked rotor amperage can climb quite high. I believe most MB fan headers are rated at ~1A. Use more than 2 fans per header at your own risk.

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