My Obsidian 800d Air cooling concept

PerryJ · 19 May 2011 at 22:10

Hi there im currently just brainstorming some ideas when it comes to air cooling the obsidian 800d case as i have read it can be achevied with good results ive seen a lot of ideas on this and i just want to present mine and see what you think.

3x120mm fans on top pushing cool air down combined with the intake of the H70 thats a lot of cool air going down towards the GPU (mine is a 480 gtx nvidia) wich has 3 stock fans that cool it pushing hot air down and then 140mm grabs that then sucks it out the bottom.

[/URL][/IMG]

Ace Modder · 19 May 2011 at 22:26

the concept is good, however heat rises.

PerryJ · 19 May 2011 at 22:32

yes but maybe with all that cool air pushed downward and the gpu card pushing hot air down the 140mm can grab it and exhaust it out the bottom to be pushed out

_lecro_ · 19 May 2011 at 22:56

Reverse all the fans and youll be on a winner

shroomz · 19 May 2011 at 23:39

I'm not sure if either of these are a good idea, you would be fighting against physics here, while reversing the fans may mean an insufficient flowrate of air into the case, starving the top (now outlet) fans of air. Then again I have never modded a case so more knowledgeable people may well say otherwise.

JoeFX69 · 20 May 2011 at 15:39

Reversing them is definitely a better idea.

Like Ace states, hot air rises, but I wouldnt worry too much about starving the top of air (Not quite sure what that means anyway).

The pressure difference alone would help pull the hotter air from the bottom (in turn pulling in more dense cool air to replace the "gap"), meaning quicker dispensing of hot air if the top fans were exhaust.

CraigN · 20 May 2011 at 16:19

_lecro_ said:
Reverse all the fans and youll be on a winner

That is how it comes supplied

minus the roof fans.

I have put an extra fan in the base of my 700d infront of my PSU

dropped my gfx temps by a fair bit.

EnderXi · 20 May 2011 at 16:35

I have my 800d setup with 4 viper's exhausting through the roof one of which has the H50 rad in front of it in push/pull setup and another on the back pulling cool air and the fans in the bottom are pulling in as well, I put the stock one I took off the back into the bottom so there are two fans pulling in there and i get pretty decent temps for air.

Now all I have to do is get up the courage and cash to go onto water cooling!

theron · 20 May 2011 at 17:31

Ace Modder said:
the concept is good, however heat rises.

this.

you will just be trapping the heat inside your case, it wont get out as quickly as it would if you reverse them.

Scon · 20 May 2011 at 17:32

Ace Modder said:
the concept is good, however HOT AIR rises.

Corrected.

I know, i'm sorry

Tealc · 20 May 2011 at 18:50

Graphics card fans normally push down towards the GPU, except for the Phantom which draws away and blower fans which push air across a heatsink and components.

Dont battle against natural air thermodynamics, use them to better your airflow. Reverse those fans. Bottom/front intake. Top/rear exhaust. You know it makes sense.

coldfused · 23 May 2011 at 17:04

+1 to reverse the flow of all the fans.

CrixxzeH · 23 May 2011 at 17:06

coldfused said:
+1 to reverse the flow of all the fans.

+2 to reverse the flow of all the fans.

antipesto93 · 25 May 2011 at 17:58

Flip it all!
+3

LePhuronn · 26 May 2011 at 17:13

I like the idea, but I have one suggestion which would improve your concept.

Don't use the 800D if you're air cooling - it sucks balls.