What fan setup and fans (already have 2x AIO)?

[FeijoaBoa]

Budget (including currency): I am an idiot who bought a 5090, so I enjoy being scammed out of money ^{but no I did NOT buy from a scalper, I just got lucky with stock in a real shop}

Country: Australia

Games, programs or workloads that it will be used for: Gaming 4k120, VR, software development

 

Hi folks, I'm accumulating parts for a new build. I've got the following:

* ROG Astral 5090 LC (the AIO one, 360mm AIO)

* 9950X3D (currently lost in the postal system of Australia)

* Arctic Liquid Freezer iii 420 a-rgb
* 2x48GB 6000MT/s CL28 Trident Z5

* Crucial T705 2TB SSD + Samsung 990 Pro for games

* LianLi O11 Dynamic Evo XL

* MSI mag x870E carbon wifi

* Seasonic GX-1200

 

As you can see, I am a man of poor taste and poor wits. Double-AIO, full rgb vomit, overpriced 5090.

 

My question is about fan configs. What I've got to work with in the case is:

* Top 420

* Side 420

* Bottom 420

* That lil 120 you get near the IO ports

 

Since I've got 2 AIOs already, that means I still need to buy 3x140mm and 1x120mm

 

My goals are:

* Slight positive pressure if possible

* Intakes use the top, side or bottom since they're dust-filtered

* Exhaust out the top if possible

* Everything individually addressable as possible ARGB

* RGB on the fans isn't "backwards"

 

I know not all of these are mutually possible, since I've already got two AIOs both of which want to exhaust. So either one of them I need to reverse the fans (now the RGB is blocked a bit) or if I don't I've got negative pressure (and dust comes in through the 120mm).

Which rads and which fans should go where? Can you get "backwards"/intake RGB where the fan support struts are on the opposite side? Do I need an ARGB controller (why doesn't every argb device support daisy chaining)? Which fans should I buy for the remaining spots? If I make one of the AIOs an intake, which one should it be?

 

 

[TatamiMatt]

1 hour ago, FeijoaBoa said:

Budget (including currency): I am an idiot who bought a 5090, so I enjoy being scammed out of money ^{but no I did NOT buy from a scalper, I just got lucky with stock in a real shop}

Country: Australia

Games, programs or workloads that it will be used for: Gaming 4k120, VR, software development

 

Hi folks, I'm accumulating parts for a new build. I've got the following:

* ROG Astral 5090 LC (the AIO one, 360mm AIO)

* 9950X3D (currently lost in the postal system of Australia)

* Arctic Liquid Freezer iii 420 a-rgb
* 2x48GB 6000MT/s CL28 Trident Z5

* Crucial T705 2TB SSD + Samsung 990 Pro for games

* LianLi O11 Dynamic Evo XL

* MSI mag x870E carbon wifi

* Seasonic GX-1200

 

As you can see, I am a man of poor taste and poor wits. Double-AIO, full rgb vomit, overpriced 5090.

 

My question is about fan configs. What I've got to work with in the case is:

* Top 420

* Side 420

* Bottom 420

* That lil 120 you get near the IO ports

 

Since I've got 2 AIOs already, that means I still need to buy 3x140mm and 1x120mm

 

My goals are:

* Slight positive pressure if possible

* Intakes use the top, side or bottom since they're dust-filtered

* Exhaust out the top if possible

* Everything individually addressable as possible ARGB

* RGB on the fans isn't "backwards"

Ill keep this short and sweet, you can put both AIOs to intake for the best thermal results and get "reverse bladed fans" which are intake away from the support struts

 

 

Then have 3x140 on the top and 1x120 exhaust out the back to get rid of that hot air and have positive pressure overall, 3x140 + 3x120 intake (restricted) and 3x140+1x120 exhaust (unrestricted), for close to equal but still probably slightly positive pressure, if its not positive, then you can run the exhaust fans a little slower than intake

[FeijoaBoa]

Thanks for replying You reckon replace the fans that come with the 5090 AIO with new reverse ones? I think I saw in a review that the astral does have fan header pins!

 

Do you know anything about argb? I can only find "hubs" that make all plugged-in rgb the same, but I thought the whole point of argb is that it's individually-addressable!

[TatamiMatt]

On 3/22/2025 at 9:48 AM, FeijoaBoa said:

Thanks for replying You reckon replace the fans that come with the 5090 AIO with new reverse ones? I think I saw in a review that the astral does have fan header pins!

 

Do you know anything about argb? I can only find "hubs" that make all plugged-in rgb the same, but I thought the whole point of argb is that it's individually-addressable!

No, you can keep the ones on it and run a push/pull setup for better temps and then you have the aesthetics down too aswell as better cooling performance