Originally Posted by charliehorse55
I used an XSPC RX480 radiator in my 800D and it's top mounted. I cut out the existing grill with a jigsaw and lengthened it as well. I then installed a radiator grill and used that to mount the radiator.
Here is a nice post that shows how to mod for a 480 and how to properly position a 240:
Here's another view:
750W of heat load on the RX480 is like 562W on the 360 Radiator (750*3/4)
So as you can see if you want a 10C delta (usually a good goal) you'll want around 1800 RPM fans. 1850 RPM GentleTyphoons would work nicely for this purpose. Your computer rarely manages to even get close to the TDP anyways, so you will usually be under 750W.
Nice pics--very clean. So do you lose one 5.25 bay or two? It also looks like the builder removed the lower 140 fan to get clearance for the 240 rad. I have to wonder if the main chamber gets enough air? Of course, you have 4 120's at the top pulling air through the rad so that helps. For your build, did you reverse the rear 140 or is it still exhausting air?
It was definately too late (and too many beers) last night. I can now see why the 480 is needed for the 2x gtx580's. For fans, would it make sense to go up to the GT 3000rpm and use a fan controller so that I'd have more delta T if I wanted / needed it (for instance when I'm folding)?
I was thinking about my loop some more. I'd think I want the 480 after the 2 GPUs and the 240 after the CPU, right? So something like res->pump->2xgpu->480->cpu->240->res?