CPU_FAN vs CPU_OPT vs SYS_FAN1 vs SYS_FAN4 Liquid Cooling Headers for Pump and Fans

SPiNSTuFF

Commendable
Oct 31, 2016
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I'm looking at the manual of specs for a GA-Z97X-Gaming 7 (rev. 1.0) z97. I have a Cooler Master Seidon 240M and I am wondering should I use
-SYS_FAN1-3 (4pin 1.GRN 2.+12V/Speed Control 3.Sense 4.VCC )
-SYS_FAN4 (3pin 1.GND 2.+12V 3.NC)
-CPU_FAN (1.GND 2.+12V 3.Sense 4.Speed Control).
-CPU_OPT (4pin 1.GRN 2.+12V/Speed Control 3.Sense 4.VCC) has the same specs as SYS_FAN 1-3 as far as defined in the manual.

I have been trying to wrap my ahead around all of these and been receiving varying answers about what to do. Specifically this site. (Best Answer is selected by the user who asked the question who can be less reliable) Can you help me figure out where to plug the pump and fans?

Cooler Master it says use SYS_FAN 1 and 2 options for two fans. (1. spliter on CPU_FAN) (2. no spliter, one on CPU_FAN other on CPU_OPT.)

Gigabyte recommends using CPU_FAN for pump and CPU_OPT for fan header (water cooling). But requires messing with BIOS settings to have it run full power constantly(according to pros)

Some pros say use CPU_FAN because of sense and failures (if pump stops working and goes unnoticed the computer will not boot).

Some pros say do not rely on this and hook it to a SYS_FAN for full constant power and faulty bios software. Which still leads to the question. Use either SYS_FAN1 vs SYS_FAN4, 4pin vs 3pin

What is the correct and safer setup?
 
Solution
Fans on CPU_Fan connector(s) and pump where you can let it run full speed but you can see speed and set alarm for it. I think it would be on a SYS_Fan 1 -3.