ROG STRIX Z490-G GAMING (WI-FI) - Fan connections

[koolyce]

Hello,

I just get a new board ROG STRIX Z490-G GAMING (WI-FI) and there are only 2 connections for the chassi fan (CHA_FAN1 and CHA_FAN2).
I would like having 4 chassi fans and I'm not using waterpump. Only the CPU fan.

So for my CPU, I will use the CPU_FAN connection.

Can I use the other connections such as CPU_OPT and VRM_HS_FAN or even W_PUMP+ for my 2 additional fans?

Thanks

[m4ttjirm]

It might be easier to just use a PWM splitter. Put fans 1+2 on CHA_FAN1, and fans 3+4 on CHA_FAN2.

As far as CPU_OPT I believe that one mirrors the speeds that CPU_FAN does, no matter what. VRM_HS_FAN is DC only and I believe it is full speed only. W_PUMP+ I believe you can do PWM control on it also if you want to.