Asus TUF Z270 MK1 - Where to plug in GPU fan?

[RipGroove]

Weird question I know, I have this motherboard on order for a new build and I plan to use a hybrid GPU (hopefully the EVGA 1080ti Hybrid, when it is available), anyway, I want to change the fan on the hybrid GPU's radiator so it matches all the other fans (Corsair ML140's) in the case. So, can I just unplug the fan on the GPU and plug the new fan right in to the GPU or do I have to plug the new fan into the motherboard? (I know the GPU is not even available yet but typically how are the fans connected to traditional hybrid GPU's such as the 1080 Hybrid, are they plugged, meaning i can just swap then fan right over?)

Also I've never owned an Asus motherboard so if I did have to plug the GPU fan directly in to the board, will the board recognise it as a GPU fan and control it as and when the GPU chip needs cooling?

 

[Lutfij]

can I just unplug the fan on the GPU and plug the new fan right in to the GPU

No, it's not that simple. The fans on the GPU's are designed to operate at a particular curve/temp threshold. The connector of a GPU fan is also much different from the fan header you see on a motherboard.

The Hybrid coolers have an AIO connected to the system whereby the pump and the fans are regulated by a signal from the pump itself.

So all you need to do with a GPU as shown above is simply drop the GPU into an available PCIe x16 slot. If you're working with an aftermarket solution, you'll need to connect the fan(and sometimes the pump) to the fan headers on your motherboard.

Unfortunately, the fan you connect isn't going to be recognized as you want it to, it'll be recognized per the header it's connected to for example, a fan connected to CHA_FAN123 would show up as a chassis fan.

 

[RipGroove]

Hmm well I'm actually building this system (more or less) in this video and at around 50secs in you see him swap the standard rad fan for a Corsair ML140, how has he done this then?

https://youtu.be/smdAG-1Gd98

I assume then he's plugged it in as a chassis fan, so is there any harm in running it as a chassis fan at a certain fixed rpm? Of course I'll have to do some tests to see what fixed rpm will keep the GPU cool under load.