Best way to mount rad in cosmos RC-1000

[jpe4ever]

Hi, being reading these threads for a couple of months now, but this is my first post as i want a bit of advice on which way to mount a rad in my cosmos rc-1000.

as you can see in the pic below i've decided to mount it at the top of the case and i've come up with 4 different ways that i can do it.


http://img186.imageshack.us/img186/5572/radmountingib9.jpg

i will be using a thermochill pa120.2, 2 x scythe s-flex (1600RPM), swiftech mcp655, ek supreme acetal and NB S-Max acetal.

i believe that option 3 would provide the best cooling option as it will drawing cool air from outside into case and over rad. However that will only leave me with 1 rear fan to exhaust all the hot air. Won't this increase the overall temperate of my case and hence the rad seeing as it will be in a warmer environment?

or is it best to pull air (option 4) off the rad and out the case leaving a cooler temp in the case?

any advice/help is welcomed

thxs!

[Boyu]

is it possible to use thermochill on cosmos, AFAIK they don't have 1,5 cm fan hole spacing like cosmos use.

[SNiiPE_DoGG]

themochills have 24.5 MM fan spacing, so they wont fit in the roof of the cosmos

[The-Fox]

Obviously Option #3.
Why ?
1. The Air being sucked from outside the chassis is cooler than the one inside.
2. Helps cool the chassis using the cool air flows inside.
3. Makes less noise out of the 4 options.

[DeathWalking]

Use option number 2. If you want to know why, refer to this post (http://www.xtremesystems.org/Forums/showpost.php?p=3309687&postcount=7).

[spoof]

And what about option 4? I'll mount my Water Cooling very soon, again with Cosmos S, so i'm wondering, isn't better when the preasure pulls the air instead of pushing it through the rad?

[jpe4ever]

about the mounting, i know the spacings don't align with that of the cosmos, but wouldnt i just be able to mount it to one fan whilst the other fan will just be attached to case or rad? obviously it wont align as it was intended too but surely that wont make that much of a diff? or won't that be secure enough?

[Factotum]

themochills have 24.5 MM fan spacing, so they wont fit in the roof of the cosmos:up:
It's true. Now i have Cosmos RC1000, Swiftech MCR220 (34mm) and 25mm fan. MB around 1.5cm down
PA120 have 59mm and 38mm fan = 97mm - :down:
PA120 59mm and 25mm fan = 84m - :down:

[ShArKo]

so, what is the best option here??? Number 1, 2, 3 or 4 ????

Now I got option number 2 and I get 50c IDLE..... :s :s So maybe I will try opcion N 3.

[faster3200]

Just to add to the confusion I am going to say option 1.

You want the air running through your rad to be the coolest it can be for maximum thermal dissipation. The air inside the case is going to be warmer so you don't want that. This leaves options 1 and 3.
Now between push or pull in this instance I say pull. Martin's tests on this showed that lower rpm fans tend to perform better in a pull scenario where as higher rpm fans do better at pushing the air.

[ownage]

I use option 2.

(old) Picture of my Cosmos 1000.

http://img.techpowerup.org/081030/cosmos_loop.jpg

I still have problems with air intake. Actually I have one intake fan and 5 outtake fans. Maybe I should test option 1? Heat goes up so I'm not sure how I should get rid of the heat.


jpe4ever: You will have to take the plastic top cover off the case, because it kills air in-or-out-take.

[ShArKo]

Just to add to the confusion I am going to say option 1.

You want the air running through your rad to be the coolest it can be for maximum thermal dissipation. The air inside the case is going to be warmer so you don't want that. This leaves options 1 and 3.
Now between push or pull in this instance I say pull. Martin's tests on this showed that lower rpm fans tend to perform better in a pull scenario where as higher rpm fans do better at pushing the air.

I think option 1 and 3 are the best way to keep the rad cool.

I will try this this weekend, just need to change a few things in my WC system.

[RC-Junior]

Well, I think the best option for you, is something like this.


http://img98.imageshack.us/img98/4831/coolerdistributionem2.jpg (http://imageshack.us)
http://img98.imageshack.us/img98/coolerdistributionem2.jpg/1/w466.png (http://g.imageshack.us/img98/coolerdistributionem2.jpg/1/)


I`m not sure how you call the "enclosure", but the idea is to leave a space between the radiator and fan to generate a more efficient flow of air and quiet.

I hope you understand.

Sorry the bad inglish, im using google traslator for write and post here. :(:down:

[Jah]

Use option number 2. If you want to know why, refer to this post (http://www.xtremesystems.org/Forums/showpost.php?p=3309687&postcount=7).

And since he's not WC:ing the GPU add another couple of 100W to the 30W heat load in the calculation. In the end it comes down to if you want to get the best CPU or best NB/inertial temps.

I say option 1


Just to add to the confusion I am going to say option 1.

You want the air running through your rad to be the coolest it can be for maximum thermal dissipation. The air inside the case is going to be warmer so you don't want that. This leaves options 1 and 3.
Now between push or pull in this instance I say pull. Martin's tests on this showed that lower rpm fans tend to perform better in a pull scenario where as higher rpm fans do better at pushing the air.

[jpe4ever]

I decided to go with option 1, but i took off the top cover and mounted the rad outside the case with the inside pulling air into the case. My Q6600 overclocked to 3.6 GHz idles at around 28c and load is no higher than 50c

[ShArKo]

I decided to go with option 1, but i took off the top cover and mounted the rad outside the case with the inside pulling air into the case. My Q6600 overclocked to 3.6 GHz idles at around 28c and load is no higher than 50c

Great, can you post some photos????

[jpe4ever]

ideally i would have like the radiator inlets to be facing downwards but due to the routing of cable it was impossible unless i drilled holes on the top of the case. so i've had to put 90 degree fittings to make it work, i've not noticed any changes in flow due to that.

http://img58.imageshack.us/img58/5037/image155in3.jpg

still not finished all the work but here's how it looks atm


http://img186.imageshack.us/img186/1884/pc007uz6.jpg