ASUS Intel ROG Maximus Z890 Hero & ASUS Intel ROG Maximus Z890 Extreme. Cooling.

[Dr. Dro]

As hot air rises in the case. Is it good to have a radiator on the top?

It will not be a problem, it's one of the only places you can have one in many cases.

 

[Oldschool297]

I guess the radiators fans blows up air? I think Lian Li had written the wrong measurements about radiators 360mm according to them and sites. But a 394mm suits perfect. I even think that a 420mm could have suited. But the last screws of the 26mm against 394mm would be hard to attach. On the top. But to be honest i could not screw in the last screw bottom to the left. Maybe i putted the radiator a little wrong. The screw was to short. But no harm.

 

[oxrufiioxo]

Top mount is typically ideal for the longevity of the aio for front and side mount you would need tubes down which most aio cannot accommodate.

Pump below radiator is always ideal for aio if not as the liquid slowly permeates over time the aio pump will become more noisy.

In your specific aio I'm not sure where the pump is though but just looking at it in your case it looks like it was 99% meant to be top mounted.

 

[Bill_Bright]

As hot air rises in the case. Is it good to have a radiator on the top?

In theory, yes.

In the real world? Maybe, maybe not. If using passive (no fan) cooling, then sure, you need to facilitate the natural flow of hot air up and out. But with active (fans) cooling, it matters much less since the fans will easily counter and overwhelm that rising force. More important than where they are located is the direction of the flow of cool air through the case. You don't want the fans working against each other.

Still, if me, I would put the radiator on top with its fans blowing through the radiator and out the case. Same with side mounted radiators. I don't like the idea of fans pulling cool air into the case through the hot radiator, resulting in the heated air being dumped into the case. Sadly, I know that is how some radiators are configured.

 

[Dr. Dro]

I guess the radiators fans blows up air? I think Lian Li had written the wrong measurements about radiators 360mm according to them and sites. But a 394mm suits perfect. I even think that a 420mm could have suited. But the last screws of the 26mm against 394mm would be hard to attach. On the top. But to be honest i could not screw in the last screw bottom to the left. Maybe i putted the radiator a little wrong. The screw was to short. But no harm.

Double check if you don't have any screw holes offset. There's usually two places to screw radiators in, because of the 140/280/420mm models which are wider than the 120/240/360 models. Also, watch this before you do, in case you need to adjust anything