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Fan obstruction and fan directions questions

post #1 of 8
Thread Starter 
I am building a gaming HTPC and of course there is very little room and I want to put two Corsair H70s in the case. Now I am planning to add another fan on the side. But this is the situation:

dscn0406vb.jpg

I need some advice; would you use a 12 cm fan like this or an 80mm fan instead (with maybe paired with a 120>80mm adapter)? Would the airflow be blocked a lot with the 120mm fan like that?

I also would like opinions about the direction of the fans. Look at this picture.

dscn0404i.jpg

I am planning to let the 2 Corsair H70s be intakes on the front, let the 2 80mms on the back be outlets. One sideintake is for the PSU and the other one cannot be paired with a fan because the fan will then be blocking the 8-pin mobo connector. So it will just be a free intake / outlet. And then the added fan in the first picture. I am not sure if I need to make that an outlet for the air coming through the radiators or an inlet to get an airflow for cold air towards the GFX card that will be situated there.

Hope to get a lot of opinions.

If you're interested; here is the buildthread:
http://www.overclock.net/t/1265000/build-log-diablo-3-themed-htpc-custom-engraved-window-picture/20
 
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post #2 of 8
that first picture is wrong you shouldnt have two fans pointing liek that becuase they will stir the airflow. if you ake the bottom one an exhaust it will help. i like your plan tho it soudns decent what are the 2 h70's for?
post #3 of 8
Thread Starter 
1 for the CPU and 1 for the GPU.
 
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post #4 of 8
aww i see. but yea if you do woth of them intake and rest exhaust you will be fine. also jsut use a 120mm fan dont worry about using a smaller fan becuase it will move less air and make mroe noise
post #5 of 8
Thread Starter 
Cool, thanks!
 
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post #6 of 8
anytime
post #7 of 8
use 120mm fans, for exhaust, but to be honest, since you have holes without mesh, i wouldn't even use fans for the rear exhaust, just a top intake maybe
   
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post #8 of 8
Thread Starter 
The case came with two 80mm fans and fangrills on both sides for the back. I will be putting 2 new 80mm blue led fans in there.
 
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Thermaltake 120 mm blue Thunderblade fan Windows 7 64bit LG 2360V Cooler Master Silent Pro M600 
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