Just found out my ThermalTake case had a default intake fan on the TOP. Can someone explain the logic behind it?

[LookingforanIDA7license]

(Image in the attachment area, question in TL;DR)

 

Hey as seen in my last question I was fiddling around my pc case and wondered whether my be quiet case fan is an intake or exhaust.

Now I just discovered while looking up with my phones flashlight, that I had another case fan!

 

After all those years I've never noticed it, unbelievable hah.

 

The top fan has an arrow pointing downwards, meaning all those years it had been taking in air from the top and pushing it downwards onto the components which were pushing hot air up = turbolence?

 

TL;DR: I dont understand the thought/idea behind thermaltakes default case fan configuration. What benefit does it have to push "fresh" air from above down onto hot components when good old physics has a tatoo that says "hot air rises".

Secondly does the configuration I posted (image) make sense? There's space on the top (has filters/air from the sides) and right side (perhaps/likely has filters/air from bottom and top)

 

PS: The be quiet fan was installed by me months afterwards so ignore it for the first question.

Thanks.

[MartinKweh]

I think that with enough air flow/pressure, the hot air /cold air science has little influence. I think its fine.

 

[Entropy.]

Yeah that doesn't look that great, I can't find a super good reason for it. It might've been installed incorrectly, or if your case has a limited front intake, maybe thermaltake thought that it would just force fresh air down to your cpu cooler? I'd probably remove it and scooch it over a slot so it's towards the back of your case, and flip it. It should somewhat help cool your vrms and would be a lot more logical. It'll depend on the fan layout of your case, as well as it's ventilation. What's your case? What's your fan layout? 

[Tristerin]

2 minutes ago, MartinKweh said:

I think that with enough air flow/pressure, the hot air /cold air science has little influence. I think its fine.

 

This

 

There is no...(unless we get real freaking sciency up in here) best way - its a literal "case" by "case" basis.  Set all fans as intake, set them all as exhaust...set them equal and test the differences.  Just depends on the case, ambient temps, fans involved, etc

 

EDIT - FYI I have a top mounted 80mm fan as intake to push air down to the VRMs...right next to a 240mm radiator with 2 fans at exhaust.  Only because it does SLIGHTLY help cool the VRMs (running 1.39375vcore)

[Entropy.]

3 minutes ago, MartinKweh said:

I think that with enough air flow/pressure, the hot air /cold air science has little influence. I think its fine.

 

I mean it's a Thermaltake case. 90% of their closed cases don't have very good ventilation lol. 

[minibois]

The whole idea of "hot air rises" probably has a very minimal affect on the temperature of your components.

 

Did the case come with one fan, or also something at the front?

For most people, a somewhat neutral airflow pattern is probably the most logical, which means a lot of case manufacturers include a fan in the rear and front.

Nowadays with AIOs being as popular as they are, you will often see a top and rear fan.

 

In my experience, those top and rear fans will always be exhaust and not intake like your TT fan is. I don't really see a reason to have it intake either.

What case is this?