JDAM Posted May 10, 2013 Share Posted May 10, 2013 I’m building a rig in an Obsidian 650D case with an H100i cooler. I noticed the H100i has two fan headers that can control up to 4 fans. My question is what is the best way connect the 650D’s 200 mm intake and 120 mm exhaust fans? To the motherboard or to the H100i controller? All the fans are Corsair OEM (two 120 mm radiator fans plus one 200 mm intake fan and one 120 mm exhaust fan on the case). The radiator fans are set up as intake fans Motherboard is an EVGA X79 FWT CPU I7 3820 socket 2011 GPU EVGA 560 TI PSU Corsair 520 HX Samsung 840 256GB SSD Ram 16GB Crucial Ballistic (low profile) Link to comment Share on other sites More sharing options...
wytnyt Posted May 10, 2013 Share Posted May 10, 2013 you will need to control these fans from your m/b,only 120mm fans can be controlled and even then only certain ones. Link to comment Share on other sites More sharing options...
Speed Posted May 11, 2013 Share Posted May 11, 2013 Again, my 650D stock 200mm front and 120mm rear fans are RPM controlled by CL2. Link to comment Share on other sites More sharing options...
wytnyt Posted May 11, 2013 Share Posted May 11, 2013 Again, my 650D stock 200mm front and 120mm rear fans are RPM controlled by CL2. again?,sorry didnt see it in the post while some may work,its far from any standard.biggest concern with larger fans is the fan curve is very limited due to their lower rpm.of course there will be working exceptions but it isnt always a good idea to say case fans will work when its such a limited number that will. Link to comment Share on other sites More sharing options...
WesternDreaming Posted May 12, 2013 Share Posted May 12, 2013 i would first make sure that the 120 you are trying to control is one of the af or sp series as the qvl for those headers are very short i would not do the 200mm at all, larger fans have lower rpm requirements for the same cf/m having your 200 rotate at the same rpm via 100i would lead to funny (only for us readers ofc) results imo, dont do it Link to comment Share on other sites More sharing options...
Speed Posted May 12, 2013 Share Posted May 12, 2013 again?,sorry didnt see it in the post Sorry. Not this post but in others where the same question had been asked. Link to comment Share on other sites More sharing options...
Reloading Posted May 12, 2013 Share Posted May 12, 2013 Works for me. I've got the 650d and H100noqc. All hooked up via the 2 splitters. Been working for about a month no problems. I can control the front fan and back case fan and two rad fans rpm using corsairlink. No idea what everyone else is on about in this thread. Was going to use the 650d built in fan controller but its powered by molex ><. Seriously. I'd have to add a molex cable to my AX just for that. Link to comment Share on other sites More sharing options...
WesternDreaming Posted May 12, 2013 Share Posted May 12, 2013 Works for me. I've got the 650d and H100noqc. All hooked up via the 2 splitters. Been working for about a month no problems. I can control the front fan and back case fan and two rad fans rpm using corsairlink. No idea what everyone else is on about in this thread. Was going to use the 650d built in fan controller but its powered by molex ><. Seriously. I'd have to add a molex cable to my AX just for that. what some of us may be talking about is that the headers are rated for a certain draw ( current/amperage ) rotating a 120mm fan at 1500 rpm for example is not as great as rotating a 200mm fan at 1500 the headers on a 100i are rated at 2a each, which is good enough to run most fans of 120mm on the market, but not all http://corsair.force.com/ feel free to contact customer support and confirm this for yourself some users of this forum do not wish to give advice that would void the warranty, ignore the qvl, and would invalidate an RMA any consumer ofc is able to do as they wish Link to comment Share on other sites More sharing options...
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