I would say yes as the Phobya 1080 isn't very restrictive. I have one myself.
Not gonna lie when I saw that rig I was a little sick in my mouth...
Really?, me maxing out BF3 with 120fps+ makes my mouth good
I don't really know what there is to do to improve tubing and cables but I'm open for suggestions.....
1 will be fine for 1080 + 2 blocks
But I have no idea whats going on with the tubing by your cards and how that might affect flow..
Are you serious?! Sorry but this rig lokks like a complete mess to me and what's the point in having a loop and then an aircooler on the cpu?
I have a d5 and the 1260 version of that rad and it runs fine on 1. I do only have one block though atm because I am still waiting for my gpu blocks.
With this 1080 rad though, you could get the matching stand, mouth the d5 with a res on it and shove it all under the desk.
Mine is under my desk now and I can't hear the pump on 5.
Btw if you're cooling a single system it'd be much better imo to buy a good case and just have the rads inside it. I have mine external because it will be cooling my main rig + a folding rig eventually..
The pump will be fine with the 1080. Rads really aren't restrictive at all, in fact they are the least restrictive component in the loop.
That is one crazy rig you have going there! A rad hanging off the back! Doesn't look like you have the internal rad lined up with fans either? Could do with a little work to sort it all out but I'd recommend a different case and re-use those rads you have got.
It will make a lot of noise if there's air trapped in the loop.
at setting 5 mine makes a high-pitched whirring sound, but I can't hear it unless I put my head under the desk.