Salamand4r

yeah there's that too. also would supplying fresh cold air to the CPU cooler as shown in pic 1 and 2 make a difference with temps ? i mean air not going through the lower side of the case and then to the cpu but instead directly from the room to the cpu. we're talking about overclocking cooling as temps would be pushed as close as 80c as i can get

@SpamBrie Yeah I'm also leaning towards picture 3 but taking fan speeds into account, would that make the fans work against each other or cause a vortex as you mentioned? im confused because of how fast the NF-F12 industrialppc-3000 pwm can be and where should i use them if i HAVE to? I thought about it but i dont like the idea of it facing the top as it would be pulling heat from the GPU under it, unless thats not a problem at all?

I just got a Noctua NH-D15 and this is the first time i deal with a CPU Air cooler as i had a single rad water cooler before it. I have some questions: I plan to Overclock soon so keep this in mind. 1- Will I have better performance if I switched the fans it comes with with 1 or 2 NF-F12 industrialppc-3000 pwm fans? 2- Covering less heatsink surface with 120mm fans will be an issue or not? if i want to add the second NF-A15 fan it wont fit because its a 150mm high fan and rams get in the way. 3- Is push-pull configuration always good? when is it bad and when is it good? would the 2 NF-F12 industrialppc fans out perform 2 NF-A15 in this configuration? (Note the size difference) 4- is having too much Static Pressure bad or good? as 2 NF-F12 industrialppc-3000 pwm fans will have way too much and i'm wondering if thats going to cause a problem. (on full fan speed) now about setting up my airflow, first here's the set up: Case: Corsair C70 Fans: 4x NF-S12A 4x NF-F12 industrialppc-3000 pwm 2x NF-F12 2x NF-A15 (came with the heatsink) Help me decide how to setup my fans, think of every possibility like NF-A15 on exhaust as they can fit in the top or whatever you guys come up with. Some ideas i came up with : 1- 2- 3- one last thing, I have a MSI GTX 980 which means we cant rely on it to be an exhaust as fans will stop spinning on low loads. (if anyone ever takes GPU into consideration when it comes to this) Please be as specific as you can with the suggestions as fan speeds are confusing me because i don't know if they will hinder each other or what not and which fans would be where and so on. Thanks in advance.