Best Fan Config for 4000D Airflow

[Toxiss]

My current fan config is one intake fan in the front of the case, one exhaust in the back, and another exhaust on the top. I've been debating whether moving the top fan to the front but not sure. The back of the case is somewhat close to the wall so logically I feel that two exhaust with the second being on the top has the best air flow but I'm frankly not sure. Anyone have ideas on the best fan config for this case? 

[BlueChinchillaEatingDorito]

15 minutes ago, Toxiss said:

My current fan config is one intake fan in the front of the case, one exhaust in the back, and another exhaust on the top. I've been debating whether moving the top fan to the front but not sure. The back of the case is somewhat close to the wall so logically I feel that two exhaust with the second being on the top has the best air flow but I'm frankly not sure. Anyone have ideas on the best fan config for this case? 

How are your temperatures? If they're fine, there's no need to mess around with the fan configuration. It'll also help you narrow down where you need more intake/exhaust. 

[Ephinum]

Just now, BlueChinchillaEatingDorito said:

How are your temperatures? If they're fine, there's no need to mess around with the fan configuration. It'll also help you narrow down where you need more intake/exhaust. 

Agree with Blue - if your temps are fine not much to worry about.

My only add would be 'have the fan setup follow natural convection' - as in heat rises so don;t have fans in the top the case pulling air in

 

[Jeppes]

45 minutes ago, Toxiss said:

My current fan config is one intake fan in the front of the case, one exhaust in the back, and another exhaust on the top. I've been debating whether moving the top fan to the front but not sure. The back of the case is somewhat close to the wall so logically I feel that two exhaust with the second being on the top has the best air flow but I'm frankly not sure. Anyone have ideas on the best fan config for this case? 

Most likely 2 lowest front slots as intake and one exhaust at back.

[Ralfi]

Assuming your temps could be better, & all you have are 3 fans, through my own testing with my 4000D Airflow case (3 front intake fans, 1 rear exhaust fan, 1 top-rear exhaust fan, 1 tower CPU cooler with 1 fan), I found with exhausts, having either a rear or top-rear exhaust didn’t make much difference. Having both is better for reducing fan RPM (& potentially noise), but you can get away with one exhaust in either spot.

 

With intakes, the more the better, but if you had 2 for the front, place them in the two upper positions, so you cover your CPU & GPU (the front-middle fan should blow air under & over your GPU therefore helping to cool & dispel heat by pushing either out the back or up top.

 

So I’d say 2 in the front (upper & middle) as intakes, & 1 in the rear (or rear-top) as exhaust.

Check my threads where I’ve done a few tests in my 4000D Airflow (great case, as Linus featured in a recent video)…

 

https://linustechtips.com/topic/1432423-pc-thermals-unobstructed-v-partially-obstructed-v-fully-obstructed-front-case/

 

https://linustechtips.com/topic/1430873-1-v-2-v-3-front-intake-fans-air-cooled-thermal-testing/

 

https://linustechtips.com/topic/1417568-4000d-airflow-fan-orientation-testing-1-v-2-cpu-fans-extra-case-fans-temps-noise-comparisons/

 

https://linustechtips.com/topic/1435331-pc-thermals-0-v-1-rear-v-1-top-rear-v-2-exhaust-fans/#comment-15424810

 

[Toxiss]

13 hours ago, BlueChinchillaEatingDorito said:

How are your temperatures? If they're fine, there's no need to mess around with the fan configuration. It'll also help you narrow down where you need more intake/exhaust. 

Temps are fine, but that's mostly given me not using everything at 100% most of the time. It's mostly a small nitpick and that I want the best possible config for the scenario where I'll be at max usage.