I'm trying to attach a second fan to the scythe mugen 2 cpu cooler. I attached the first one with a clip, but only one came with the CPU cooler. I've looked online to buy another clip but any website that carries them is sold out. I've done some searching on Tom's and google but so far I've been unable to decide how people normally attach a second fan. Secondarily I've been reading conflicting things about push/pull. I don't really care about noise, but is there any real benefit?