I've installed as many Noctua fans as my case can support. Can I forgo a CPU fan?

[Tacticuddler]

I've installed 5 X [Noctua NF-P12 redux-1700 PWM (120mm)] fans in a Cooler Master R600 Silencio case (I removed the stock fans). 2 in the front as intakes and 3 in the back and top as exhaust.

 

The CPU fan currently installed makes lots of noise. Could I remove it and hope that the Noctuas can handle the heat?

 

 

[BlueChinchillaEatingDorito]

Just now, Tacticuddler said:

I've installed 5 X [Noctua NF-P12 redux-1700 PWM (120mm)] fans in a Cooler Master R600 Silencio case (I removed the stock fans). 2 in the front as intakes and 3 in the back and top as exhaust.

 

The CPU fan currently installed makes lots of noise. Could I remove it and hope that the Noctuas can handle the heat?

 

 

Or just replace the CPU can with a Noctua one. Doesn't hurt to add another one. 

[sauronofmordor]

I mean you can try, I'd stress test it with your finger on the off switch to make sure it can handle it. also you can put one of your case fans in for the CPU fan, even if the pins don't match in number that just means you lost PWM, which is definitely suggested you don't go without, but you can if you want and with better results than lots of case airflow with no fan.

[VeganJoy]

buddy of mine tested this with a stock TR 1920x under a noctua u14s, no fans on it but 5 140mm nf-a14s in the case. didnt really have issues but he also didnt run heavy workloads on it. plus the u14s is a big heatsink, if youve got a little hyper 212 this may not be a good plan lol

[Blue4130]

It really depends on the case layout and heatsink. Servers are often made like this, but many have plastic shrouds to direct the airflow. 

[Tacticuddler]

6 hours ago, Blue4130 said:

It really depends on the case layout and heatsink. Servers are often made like this, but many have plastic shrouds to direct the airflow. 

Aside from the shroud and the GPU at the bottom the case is pretty open. 2 front fans push directly into the three back/top fans with little obstruction in a diagonal.

 

I'm asking because my 212 EVO cpu cooler mounting bracket is toast and I've blown my budget on the noctua fans so I can't afford to replace it in the near future.

[LogicalDrm]

On 8/27/2020 at 7:22 PM, Tacticuddler said:

Aside from the shroud and the GPU at the bottom the case is pretty open. 2 front fans push directly into the three back/top fans with little obstruction in a diagonal.

 

I'm asking because my 212 EVO cpu cooler mounting bracket is toast and I've blown my budget on the noctua fans so I can't afford to replace it in the near future.

You will need big-ish heatsink to be able to passively cool CPU. I'm also rather sure that single heatsink fan will be better than 2x case fans for CPU cooling.