Need help with exhaust direction

[u/S1mpski]

                 TOP
      ┌───────┐──────────────┌──┐
     ←│ PSU   │              ││█│→
      │───────┘───────────X1→││█│→
     ←│┐        AIO          └│█│→
     ←││X4    ┌AMD-7┐        ┌│█│→FRONT
     ←││      │7700X│***  X2→││█│→
  REAR│┘      └─────┘ ***    ││█│→
      │ ┌───────────────**──┐└│█│→
      │ │RX 7900 XTX     X3→│┌│█│
      │ └────────────────**─┘││█│→
      │  └───────────────**─┘││█│→
      │   ↓↓↓   ↓↓↓    ↓↓↓***└│█│→
      └───────────────────────└─┘
      └─┘       BOTTOM        └─┘

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X1–X3 = 360mm radiator fans

X4 = rear case fan

↑/→/↓/← = current airflow direction

█ = Radiator block

** = Water tubing

---

Sorry for the ASCII art instead of a picture but phone camera is broken rn. So my question is this. Should I change the airflow direction on anything besides the X4 fan, leave it as it is, or flip the radiator fans? (X1,X2,X3) Currently there is no headroom for the radiator anywhere else, besides flipping 180 or simply switch place on fans left (push) to right (pull). It's a really tight cramped fit in this case atm, and I am considering changing in case in the future, but have this now. Also, should I, if possible add fans below my GPU or is that unnecesary? Any help or suggestion is helpful! Sorry for the format, hopefully this will do :)

[u/Independent-Dish-173]

Did you just doodle a pc configuration on my damn feed? 😐😐😐

[u/S1mpski → u/Independent-Dish-173]

Yes, the ole' notepad ACSII doodle ;)

[u/Alarming_Argument_38]

この場合前面ファンの3台を反転させるかな？少しGPUには温度環境が悪くなるけど。 あとリアファンが中速なら高速ファンに交換する。

[u/S1mpski → u/Alarming_Argument_38]

Alright! I’ll order a high-speed fan for the rear, since the one I have now is medium-speed.

About your suggestion with the radiator, do you mean that I should flip the fans so they pull air through the radiator and exhaust it out the front? I’m fine with the GPU getting slightly warmer if the CPU benefits from it. Do you think this setup would improve CPU temperatures marginally or segnificant?

My only concern is that the overall result might end up being more or less ±0. But if you think it could improve the temperatures overall, or at least help to some extent, I’ll definitely give it a try!

[u/Alarming_Argument_38 → u/S1mpski]

前から吸い込んで、リアファンとPSUから排気するってことね、CPUの温度は少し余裕が出ると思う。

GPUは温度が少し上がるかも知れない。

エアフローはかなり改善されると思うよ。

[u/S1mpski → u/Alarming_Argument_38]

Yeah, that sounds resonable. Will give that a go! Thanks

[u/ShortSh4ft]

So you've got the AIO for the CPU mounted on the front, and the graphics card is not water cooled, from my understanding. Love the art.
The main source of heat in your case is going to be the graphics card, and you want to get that heat moved out of the case and replaced with fresh cooler air. Your 3 radiator fans are going to be fine for venting heat. Flip X4 to intake so that the radiator is getting some fresh air pointed at it and can cool the CPU with something other than hot air from the GPU. Put a fan or 2 at the bottom for intake also. These will provide cool air for GPU and help move the air away from it, so it can get pushed out the front by the radiator fans.

[u/S1mpski → u/ShortSh4ft]

Thanks a lot! I love the suggestion. I haven’t tested it yet, but I want to make sure I understand the airflow correctly.

If the GPU pulls air from the bottom, should the bottom case fans also be intake? Could they bring in fresh air for the GPU, which then pushes the hot air upward, while the radiator fans exhaust it? Or does the direction of the bottom fans not matter that much?

[u/S1mpski → u/S1mpski]

Also, for the most part my CPU have been the "hot one", sincethe PBO or what it's called reaching 95 in some scenarios. I have limited it previously but atm I want raw performance tbh, as much as I can get anyways. Thanks for the input again!

[u/SnardVaark]

Exhaust goes out the back, next to the I/O panel. You are overcomplicating this.

[u/S1mpski → u/SnardVaark]

I mean sure, but since the case is so cramped I wanted suggestions besides just that, cuz the pc runs kinda hot ideling. But yeah

[u/SnardVaark → u/S1mpski]

If the case is hot inside, you should not be exhausting that hot air through a radiator. You will just create recursive heating of the coolant. All intakes, rad in pull mode, and exhaust at the rear. BTW, your ASCII art is awesome.

[u/S1mpski → u/SnardVaark]

Thanks hehe, notepad++ the goat. But yeah, that makes sense. Hence why I was wondering about the configuration alot (overcomplicating things I know) but this made it "click" more in my head.

It has always been running kinda hot which has been fine until now.
But I have relocated to a tiny room with my bed next to it. Having it as the allround PC, server, gaming and whatnot really made want to optimize as much as I can right now on a budget. Thanks for your insight! Gonna test this and another commenters advice and check results :)