required rad space

[2hm]

Hi! I'm planning on watercooling an overclocked i7 4770k + 2 780tis.
So, calculating the tdp, say around 100 for the cpu + 500 for the gpus. Adding 200w of head room in case I overclock them as well, I end up with 800w of heat to be dissipated. What's the most efficient way of doing it? Space is not an issue, the case has lots. I'm thinking 1x 80mm thick 480 and a second 80mm thick 240, both in push pull + corsair sp120s. What I can't seem to find is how much heat a monsta rad dissipates. Anyway, are the rads enough for the anticipated 800w - or would the fans have to sound like a jet engine to deal with the heat?

 

[Dragolu]

There are two components to this. From a radiator standpoint a 480 x 60 alone could handle your setup. Of course more radiator area means you can have less fans or quieter ones.
The problem is that although the thicker radiators can dissipate more heat they usually have higher fins per inch. This combined with the thickness that means the fans need more static pressure to push through them which usually means they are noisier. Without the right fans the thicker rad can cool less than a thinner one.
In the end it is always a balance. Thicker radiators can be more versatile to a point but high fpi radiators require more powerful fans.
Although it doesn't include the proposed rads this page may help.
http://martinsliquidlab.org/2012/04/14/360-radiator-shootout-summary/
This one does include them.
http://www.xtremesystems.org/forums...ews-Comparison-of-Radiator-Cooling-Efficiency

 

[jamesriley94]

What case do you have?

You'd get away with a 360x60mm and a 240x60mm, even with relatively low fan speeds, if you use half decent fans. Depending on the case, and how much room you have, if you can fit larger rads in, and you've got the money then you may as well.

What you've proposed in the OP will easily cope with the hardware even at low fan speeds.

 

[2hm]

I'll be getting the enthoo primo. It can handle pretty much anything you throw at it I just want to order everything together

Yeah, at first i was thinking of going with a 420 on top and a 480 in the bottom, but it would probably be overkill. Fans will probably be Corsair Sps to match the color scheme. I wanted to go for a green build at first, but I feel that changing the red led on the maximus vi formula would be a hassle, given the tampering with the motherboard and all - too scared I might damage something