Need help with case airflow

kennyzert · April 17, 2021

I'm building a mini ITX pc for the first time and I'm struggling to find a good airflow solution for this case.

The case supports 3 120mm fans and 1 85mm fan.

1 Lower Front - 85mm

2 Top - 120mm

1 Lower Rear - 120mm

Here is a picture for reference https://imgur.com/a/W4fhSif

Normally in a case like this would just go with front and rear as intakes and double exhaust on the top, but this case is weird, the mobo is upside down, leaving the GPU on top with the fans up pulling air font the top of the case.

I don't mind having a little bit of negative pressure but I'm not sure if having 2 exhaust fans pulling air on top of the GPU fans is such a good idea.

I only have 1 fan installed because somehow this mobo has 2 RGB headers, 2 front panel headers but only 1 system fan header so I am waiting on some adaptors.

After some the tests GPU temps are fine right now as I have the fan as intake helping the GPU fans but CPU is struggling as expected.

How bad of a vortex will it be if I have the top 2 120mm fans as exhaust? do I have set the top 2 as intake? please share your opinions.

CPU - Ryzen 5 2600
GPU - Radeon rx 570

As a side note I know the case is not the best and is meant to have a radiator on top but the owner wanted this case because it looks good in her room.