Thinking about making a CPU duct so I can suck in cooler air from outside the case and blow it onto the CPU fan, not sure what to make it out of though! CPU is an AMD 2.8GHz Dual Core with stock cooler. Or should I be sucking hot air FROM the CPU and not BLOWING cooler air onto it?
Ideally I want to use an 80mm fan at the back of the case and make a right angle duct down to the 60mm fan on the CPU. I could do one from the side as I have 2 fans there too pulling air out so I could turn one around and it would be more or less straight but fancy the right angle approach as it would give more space for air flow.
Thought about square rubber tube (if that exists) or round rubber tube with thin walls so it can be stretched over a square 80mm fan and square 60mm fan, not sure if that can be 'bought' offshelf?
The reasoning behind this is my mobo/gfx card use passive cooling, no fans, and so radiates heat into the case. I have two 80mm fans in the side pulling air out and one 80mm fan at the back exhausting too and space for 1 more fan at the rear which is the one I want to use for the duct fan.
I also have a 120mm fan inside the case hung under the HDD bay blowing directly across the gfx card towards the rear of the case and another 120mm fan hung under the PSU with an inch gap blowing stright down onto the gfx card too, so all hot air is being blown towards the 80mm fans and exhausted.
But I think some of the hot air is getting sucked in by the CPU fan and making it spin faster and gets noisier, so that's the reason to make a CPU duct rather than fork out more money for different CPU cooler!
Maybe flawed logic but I like the idea of a duct as it won't be recycling hot air from inside the case!
Thoughts/criticisms/rofls/lmaos welcome
Might go googling for info now!