which replacement fans did you choose to use? I would appreciate a link if you have it. Thanks.
I am running 2 S5 on one EVGA 1300, all wires are either cool or slightly worm (connectors also no more than 45C-with a laser probe). However, I used a different scheme (two doubles on one miner with each double on one board and 4 singles on another). I chose this configuration because using doubles on one board was how I run S3 on CX750M for many months with nary any problem.