Which case fans?

[GoogalyMoogaly]

OK, so I've just fitted (assuming the leak test goes ok) custom WC loop with a 240mm rad in the top of my Corsair 540 AIR.
Now my concern is that I have the 2 stock 140mm intake fans but now have a 140mm exhaust and the 2 120mm rad fans (Apache Vipers) also exhausting. This is likely to give me negative air pressure in the case. I'd like to try to remedy this if I can, at least to some degree.
So my plan is to replace the 2 stock 140mm fans with 3 120mm fans.

So I'm wondering what's my best bet for quiet 120mm fans that shift a decent amount of air to help balance out my case air pressure?

The other thing is, it'd help if they had really long (over 31cm) cables as I plan to power them off the motherboard headers along the bottom of the Gigabyte Z87X-OC board (due to the 540 not being ideal for fan controllers).

I could probably use a fan splitter or 2 to drive all the fans off 1 header while also negating the cable length issue. I'm just not sure what current each of the fan headers can supply, does anyone know?

 

[GoogalyMoogaly]

Now trying to decide between getting some Corsair AF120s (High Performance) or using the CoolerMaster Sickleflows that I've already got (although not a fan of the LEDs).

Is it worth getting the AF120s over the Sickleflows?

 

[Hakanese]

The cm fans seem to be pretty good build, unless your rig is baking I'd not bother changing them. But if the LEDs are really upsetting you that much give the corsair a try.

 

[Chris Beard]

Why not just reverse the 140mm exhaust to an intake fan?

Just get yourself a filter if dust is the concern.

Or if the 140mm is in your power supply, make the RAD intake. It may even lower your temps as cooler air is passing through the rad.