To answer Op...
AIO's have been around for years, much longer than motherboards have included a cpu_pump header.
For that AIO, it's a basic AIO hookup. Instructions will say put the pump to cpu_fan and put the fan on sys_fan. Personally I think that's not right (it's done that way because the cpu has a security feature that if cpu_fan reads 0 rpm, it'll shut the pc down, as in if the pump fails) and most will do the reverse. In bios, set that sys_fan header to 100% permanently, so it's always at full power for the pump, and set the fan on cpu_fan so it has control according to temp of the cpu.
It's old school, doesn't need fancy headers.