Originally Posted by xKrNMBoYx
Loop is done and now leak testing. I initially had a problem where the fill port got loose in the beginning but after that I have not seen any leaks. Time to leave it on for 24 hours. Then I can connect everything and get to seeing temp changes from reference cooling.
I've been thinking about doing a custom loop on my own setup with 290's in crossfire as well, but there's something I don't understand. After looking at a number of other people's loops and paying particular close attention to the order of the components in terms of water flow, I don't get why people often have all their system components - CPU, GPU(s) - flowing one after the other, especially when they have more than one rad in their system.
Looking at your system, for example - and please forgive me, this is just an observation - but the order of flow doesn't make sense to me and I don't think this would give you the best possible temps. It looks like you have things in the following order:
Res/Pump -> top rad -> front rad -> GPU -> GPU -> CPU -> rear rad -> res/pump.
Now, to me, I would think the water would be warmer right after going through both GPUs, and having that water go through the CPU right after would that not cause the CPU to run a little warmer? If you have multiple rads, my thinking is it would be best to have a rad between the CPU and GPU blocks and run the water through the CPU first as they generally produce a lot less heat than GPUs can.
Would this not be a better order for water flow?
Res/pump -> CPU -> rear rad -> GPU -> GPU (with parallel flow between GPU blocks instead of single-line flow) -> front rad -> top rad -> res/pump.
My thoughts on this is to have the majority of the cooling done after the water flows through the components and before the pump (so the pump gets cooler water going through it) and to have one rad between the CPU and GPU(s) so the water is as cool as possible before going through each component.
Again, I'm not trying to pick apart your system at all, I think it's awesome! I'm just trying to understand why I've seen so many people who have the order components and flow of water in what I believe to be a less efficient and less optimal layout. Perhaps there's something I'm missing? Does what I'm saying make any sense?Edited by MEC-777 - 10/23/15 at 11:16am