All of the fan headers are 4 pin but also accept 3 pin. Pretty sure you just switch to voltage mode.

I like my scythe kama flex 120mm pwm. It'll run down to about 300rpm or so up to 1600rpm and has an sony fluid dynamic bearing with basically unlimited lifespan.

http://www.newegg.com/Product/Product.a ... 6835185161

In my experience pwm fans can go slow without problems and 3 pin ones have a chance of low speed chatter. Not that I've tried them all of course but my cpu fans (kama flex 120mm 1600rpm) are pwm and work great but my 3 pin thermalrights acted funny at super low speed with my fan controller. I'll ha...

After messing around with it some I think I can say that fan xpert 2 is a dream come true. I haven't tried everything it can do but my pc is quiet with no knocking or clicking on standard mode. I don't think I really even need the software installed because the default bios settings seem good enough...

In my experience pwm fans can go slow without problems and 3 pin ones have a chance of low speed chatter. Not that I've tried them all of course but my cpu fans (kama flex 120mm 1600rpm) are pwm and work great but my 3 pin thermalrights acted funny at super low speed with my fan controller. I'll hav...

I can see the appeal of a small case but I like having room to work and for lots of big fans that I can run slow while still keeping temps low with a performance system. If I ever made a tiny rig I'd probably use this http://www.lian-li.com/v2/en/product/product06.php?pr_index=585&cl_index=1&sc_inde...

Looks good. Newegg has a pretty nice deal right now for a 3570k for $220 and the asus board you linked me to in a combo for $30 off in addition to the cpu and motherboard both being on sale already. Along with 8gb of ddr3-1866 it came out to $474.97. I decided to go for it and I suggest you jump on ...

I think I'm going to run at constant speed for awhile with the thermalright fans until I upgrade to an ivy bridge setup with an asus motherboard that has fan xpert 2. I just watched a video of it and it looks pretty customizable. The fans they used in the video made no clicking noises or anything li...

The noiseblockers came in and I tried them out. They act similarly to the thermalright fans. Not the same sound but still annoying. I think it's something about the way the rheosmart 3 controls the fans in auto mode because I tried manual control and the thermalrights are quiet as a mouse. Moral of ...

For horizontal mounting of noiseblocker fans, noiseblocker says "You are right, but they have different bearings. The BlackSilentPro fans you can mount horizontal. Beste Grüße / best regards Niels Polenz" So I guess the blacksilent "pro" series have something special about the sleeve bearing that he...

It doesn't happen at full speed. Just when they're going slow.

It's not bad bearings because I just bought the fans a couple weeks ago and they all do it (the 140mm,s). Looks don't really matter because I don't have a case window. I sent an email to noiseblocker asking about horizontal mounting and they told me to get a black silent series for that. I don't rea...

Hi all first post ever on the forum. I tried this on ocforums but they don't seem as into it over there so hopefully you don't mind giving some advice. I have a sunbeamtech rheosmart 3 fan controller http://www.sunbeamtech.com/PRODUCTS/Rheosmart/3.html that reads the pwm signal off the motherboard a...