Noob fan config help needed

[RapidAccessMemory]

Im building my first workstation this week. I have a Corsair 4000D airflow case and plan to use the two stock fans as well as three 120mm noctua NF-A12x25 PWM and one 140mm Noctua NF-A14. Does it seem fine to use the 120mm Noctua fans as front intake, one stock corsair fan and the 140mm noctua fan as top intake and the last stock fan as exhaust?

Any advice will be much appreciated as I have no idea what im doing.

 

Part list:

intel i9 12900

msi pro z690-a wifi ddr4 motherboard

noctua nh-u12a chromax black

asus tuf 3080

kingston fury beast 3200 ddr4

wd black sn850 NVMe m.2 ssd

Corsair RM850 2021 psu

 

[Ralfi]

If you absolutely must use all those fans, then I’d put the 3 Noctua 120mm intake at front, 1 Corsair 120mm exhaust at the back, 1 Noctua 140mm exhaust at the top-rear & 1 Corsair 120mm intake at top-front.

 

Test that & see if temps are happy.

[Dogzilla07]

8 hours ago, Ralfi said:

Noctua 140mm exhaust at the top-rear & 1 Corsair 120mm intake at top-front.

@RapidAccessMemoryThough this is a cosmetic/aesthetic only choice which will very likely be counter-productive. Having two fans next to each other out of sync (one pushing air in, other pulling air out), just cycles/circles the air between them, and prevents it from participating in the airflow of the case.

[Ralfi]

1 hour ago, Dogzilla07 said:

@RapidAccessMemoryThough this is a cosmetic/aesthetic only choice which will very likely be counter-productive. Having two fans next to each other out of sync (one pushing air in, other pulling air out), just cycles/circles the air between them, and prevents it from participating in the airflow of the case.

Although, it worked well in my system, albeit with a couple of 120mm fans up top.

 

I don’t feel the exhausted hot air at the rear being reintroduced at the front. If you’re able to mount these fans with a gap between them, it minimises the chance of that happening anyway.

 

Also, my top-front only kicks in when under heavy load, so the CPU receives more cool air only when it needs it. It’s off for idle/low CPU usage.

 

I mention to test this for the OP since their system runs hotter components than mine, so his CPU may need it more than mine does.

@RapidAccessMemorycan test it with & without that top-front fan to see if it’s worth keeping there.

 

They could also see if the smaller 120mm fan works better at exhausting air in the top-rear position compared to the 140mm, although, seeing as the 140mm is a Noctua, it’s probably going to do a better job than a factory fitted Corsair fan..