Ok, it appears I was wrong last night. I have a 12v power and a Tach signal wire coming from the d5, the tach signal is the one with the 3 pin end, but there is actually only one wire. Does this change where I plug it in?
I also added 3 more fans to the exterior for push and pull on the top rad. Shame they are pretty side down, lol. So I have 3 sets of splitters for fans, (One splitter on the 2 front rad fans and the rear case fan, One splitter on the inside upper fans, and one splitter on the outside upper fans.)
After a bit more reading this am, (and less beer...) I think I have a plan, could anyone let me know if I'm on the right track please?
Rear Chassis Fan (AF140) and the front rad 2 fans (a f140) into CHA_FAN1
Top Rad Inside 3 fans (SP120 Quiet PWM) into CPU_FAN
Top Rad Outside 3 fans (SP120 Quiet PWM) into CPU_OPT
Tach signal from D5 into OPT_FAN3
Thanks everyone. So close...