- The radiators should probably be left as is
- Fans, assuming:
- non-RGB fans as you did not mention the model
- 3 fans per radiator and 2 case
- controlled by motherboard
if you are happy with the fans, you could leave them alone.
If you wanted RGB fans you could change to the Corsair LL series.
There are several options for control:
- Keep fans and continue control with motherboard
- Keep fans, but control with an OCTO to use system parameters for control (e.g. curve controller tied to coolant/ambient ΔT).
- Change fans to LL series, and control fans & RGB with aquacomputer gear.
- GPU and waterblock to be replaced.
- CPU water block could remain the same or upgraded depending on desire & budget.
- I am not sure if the Corsair RGB strips are compatible with the RGBpx system - hopefully someone with knowledge will comment.
An option to control the fans & fan's/strip's RGBs:
- an OCTO
- a Farbwerk 360
- 3 Splitty4s
- 2 three way PWM fan splitter
- the High Flow NEXT you mentioned
- coolant & ambient temperature sensors
Fan RPM control
- OCTO port 1 > Splitty4 #1 > 3 way PWM splitter > 3 fans radiator 1
- OCTO port 2 > Splitty4 #2 > 3 way PWM splitter > 3 fans radiator 2
- OCTO port 3 > Splitty4 #3 > case fan front & rear
RGB control
- OCTO RGBpx port 1 > Splitty4 #1 > fans 1-4 RGB connectors
- OCTO RGBpx port 2 > Splitty4 #2 > fans 5-6 RGB connectors
- Farbwerk 360 RGBpx port 1 > splitty 4 #3 > fans 7-8 & Corsair RGB strips daisy chained (if total RGBs <90)
- ditch the lighting nodes core
With the upcoming FUSION upgrade to aquasuite, this will all be easily controlled.
Best to wait for more feedback on this thread as I may be in error on parts.