Pump Header on CPU_FAN or SYS_FAN ?

[killyx]

Hello there, and sorry for my bad english!

 

EDIT: I saw here that it would be better to plug the pump onto the SYS_FAN, and run the pump at full speed for better flow and constant cooling : anyone could confirm ? If not so, I think I will plug both PUMP and Radiator Fan to CPU_FAN to be sure.

Today I built my first ITX config, and I have some questions about my AIO :

 

My mobo is a Gigabyte - Z390 I AORUS PRO WIFI and my AIO is a Cooler Master - MasterLiquid ML120R
I read 10 times all of the documentations, asked on discord and checked on forums, but I can't find any answers.

My mobo have 3 fans connector : 1x CPU_FAN and 2x SYS_FAN, my question is, what do I need to connect to CPU_FAN ?

• The pump + the fan on the radiator (with a splitter) ?
• Only the pump ?
• Only the fan on the radiator ?

Some screenshot :

• MOBO
• AIO

 

btw, I have 4 fans, all Corsair LL120RGB, RGB pin's of those are connected to the Node Pro, and the RGB pin of the AIO is connected right onto the motherboard.

 

Thanks for your answers!

[Semper]

Run the pump on the CPU header if it doesn't have a dedicated header (some boards do).

Run your case fans and/or radiator fans on the system fan headers, splitters if need-be.

[killyx]

7 minutes ago, Semper said:

Run the pump on the CPU header if it doesn't have a dedicated header (some boards do).

Run your case fans and/or radiator fans on the system fan headers, splitters if need-be.

I have seen just now that if I run the pump on the SYS_FAN, the pump will run at full speed all time, which is a good thing, the liquid flow need to be constant.

And the fan on the radiator to the CPU_FAN to be able to manage the fan with the temp of the CPU.

[boey]

19 minutes ago, killyx said:

the pump will run at full speed all time, which is a good thing

you might experience a slightly higher chance of pump failure and higher noise but you should get better temps assuming the fans are at a decent speed

[killyx]

1 hour ago, _d0nut said:

you might experience a slightly higher chance of pump failure and higher noise but you should get better temps assuming the fans are at a decent speed

 

1 hour ago, Semper said:

Run the pump on the CPU header if it doesn't have a dedicated header (some boards do).

Run your case fans and/or radiator fans on the system fan headers, splitters if need-be.

 

Anyone could tell me which will be the benefice to plug the Pump + the radiator FAN on the CPU_FAN ?

This make no difference for the fan to be plugged onto CPU_FAN ?

[killyx]

Thanks anyone for your answers, I solved my problem here.