CoolerMaster Cosmos II with Corsair Hydro H100.

[airdeano]

positive pressure leads to less dust trapped inside of case. your intake air-flow
(filtered) is more than your exhaust air-flow. thus positive pressure in case.
negative pressure is when the intake air-flow is over-come by the excess
amount of exhaust fan leaving a negative pressure in case. when a negative
pressure is in the case any leak of air from the case (unfiltered) will allow
dust bunnies to multiply inside the case. you will want a 5-15% postive pressure
to keep dust levels low.
to make push/pull work advantagiously, it is best to have similar air-flow specs
between the fans. so mixing fans is not the best idea. if you have one set on the H100, use the same as the second set.

airdeano

 

[NotSure]

positive pressure leads to less dust trapped inside of case. your intake air-flow
(filtered) is more than your exhaust air-flow. thus positive pressure in case.
negative pressure is when the intake air-flow is over-come by the excess
amount of exhaust fan leaving a negative pressure in case. when a negative
pressure is in the case any leak of air from the case (unfiltered) will allow
dust bunnies to multiply inside the case. you will want a 5-15% postive pressure
to keep dust levels low.
to make push/pull work advantagiously, it is best to have similar air-flow specs
between the fans. so mixing fans is not the best idea. if you have one set on the H100, use the same as the second set.

airdeano

If i can try to make totcal CFM of intake equal to total CFM of exhaust.
Will that lead to a state where zero/near zero pressure is applied ?
Or do i have to consider something else ?

 

[SnW]

Ok , What exactly do you mean by Push pull?

Sorry for the late reply matey,
but what Josh said

Oo BTW i also have the H100 other wise i wouldn't have replied ^_^
i am using push pull and get temps around 50c F@H 24/7

I really love this cooler even tho the slim rad ,
/next would be a rad that is thicker.......

 

[airdeano]

If i can try to make totcal CFM of intake equal to total CFM of exhaust.
Will that lead to a state where zero/near zero pressure is applied ?
Or do i have to consider something else ?

it is not that ctitical on "zero/near zero pressure" due to the case is
not totally sealed you are just trying to minimize the inlet particulates (dust)
and maximize air-flow and cooling efficiencies.
example:
blasting 500cfm into the lower portion front of the case so the air streams back
towards the GPU, the CPU will sufficate, from the lack of air-flow from the bottom
even if you have 500cfm exhausting from the roof.

why?
air is one lazy SOB. it one goes where it is told to and if something is in its way
air gets lazier and struggles past the obstruction. so it is not as ease as air-in
and air-out.

the GPU acts as a wall, dividing the lower section from the upper. fans from the front
panel press air into the case. the air isn't a column, it is more like a bloom of air
once passed from the fan chassis it explodes outward and loses "punch".

so don't struggle too much on "balance of fans to develop "pressure or lack of".
use easy math, 3x 120 in 3x 120 out = zero.

if you start to accumulate piles of dust, figure you have too much exhaust and
remedy the issue.

airdeano

 

[Technophobe]

Better way of doing things:
Buy a mid-highend system for waaaay less than this, and then when the time comes that games use more cores etc. you can buy new hardware a few years down the line. Much cheaper, and you actually get better performance as a result. Also, it gives you the opportunity to get more new things, which is always good
By the way, two 690s is one of the worst ideas ever...so stop that right now!
What resolution do you play on? Give me 10 mins, and i'll get a list together for you.

This!

I tried getting all the cutting edge stuff for my build a few years ago when DDR3 was a brand new thing. Cutting edge made me bleed.

Now I only get cutting edge PSU's and Cases because they tend not to become obsolete so quickly.

MoBo's, CPU's and GPU's I go for mid range ones that have been out a while and have good reviews, then overclock them slightly with a minimum of stress.