Quote Originally Posted by Blauhung View Post
if not less

Also if you do run in parallel your flow rate to each card is ~1/2 what you would get if you went serial. Higher flow = better heat transfer so if you 1/2 the flow you get higher temps on each card
I followed Malik's ATCS 840 build and he went down 2/3 degrees by going to parallel from serial. And thats 1 big loop for the entire system.

I think you get a better flow overall because there's less restriction forcing the water thru the GPU blocks.