Cosmos 2 + H110 fans.

[Flash1337]

Greetings

Pc specs :
Motherboard GA-Z77X-UD4 TH
PSU : CORSAIR AX 1500I
GPU : 2 WAY SLI 780TI
Tower : Cosmos 2
Hdd : 128 gb (6x) ssd
Ram : 1600mhz 16gb corsair
Cpu cooler : H110
Cpu :3770k stock 3.5ghz (oc'ed to 4.4)

Question :
The cosmos 2 has atm, 1 fan in front (in) 1 fan on the back (out), 2 fans on H100 (in at the top), i have 1 fan left, which i can use.

Should it be on the side pushing air in on the gpu or pull it out?
Or should I put it right behind the back-fan to pull more air out that way?

Atm i have a small stable overclock at 4.4ghz, 1.2vcore, at idle the temps are getting 37 - 41c.
Under stress test (blend) prime95, i goes to 78c.

Theres no dust, everything is cleaned, remounted (twice now), not to much nor to little thermal paste.

Room temp : 17c

I can't figure out why it gets so hot?

Any suggestions will be taken with a smile.

 

[vagrantsoul]

are the fans open air (dual fans) or blower (shoots the air out the back)? the blowers are usually better for sli, since there isnt a cloud of heat aroudn them...

if they're blower cards, have the side panel fan pushing external air to them, if they're open air, have the side fan be an exhaust to pull the heat away from them.

also, not familar with teh cosmos personally, but if they're both pulling air in and thus forcing hot air down towards the gpu... maybe change the frontmost fan to intake (in from outside case) and rear fan blowing the air out (creating a small circuit)... this MAY help or may raise cpu temps... just helps alleviate building up too much hot air in the case.


i typically try to have the top fans and rear fan(s) as exhaust due to convection.

 

[Flash1337]

Thanks for the great insight of intake / exhaust, made me understand it better

I've changed the fans around a bit,
So front and side are intake, back and also watercooler fans are exhaust, it made the temps 7c better, not much but i can live with that.

It's just confusing, because i do get the whole air-flow thingy, but in the H110 manual, Corsair states it's best to make the H110 as intake.

But that gives more dust.
Making them as exhaust, just blows hot air through the radiator.
Which i guess is also bad, but i didn't see any changes there.

So less dust, is better i resume.

So confused.

 

[vagrantsoul]

it's subjective, you can always get dust filters to put over teh rad, just need to clean them.

here's a video to explain + vs - pressure: https://www.youtube.com/watch?v=g8EN3K-eaVA