[SOLVED] Should I Get More Case Fans?

[Kirbyarm]

I went ahead and purchased this case: https://www.newegg.ca/Product/Product.aspx?Item=N82E16811352087

It seems to come equipped with 2 case fans by default. I chose this case primarily for the high standing it has for being one of the best airflow cases in its class, at least according to what I was able to find in my research. My concern is it only comes with said 2 fans. Claims to support 7 total fans. Should I get more? Where should I mount the 2 (or more) fans for optimal airflow?

I'll be putting an overclocked 9900k with NH-D15 in there.

Thanks for your time~

 

[Kirbyarm]

Yeah, auto-adjustable sounds nice for when I'm just doing some quiet web browsing or workstation stuff, or god forbid - sleeping. Thanks a lot for your help everyone!

Selecting @maziech 's first response as Best Answer since it clearly addressed everything asked in the original post.

Another bonus up vote if anyone can tell me if my motherboard or case will be able to handle 4x 4 pin fans without needing to purchase any extra parts. Ordering the fans now.

 

[Gmoney06ss]

Board has 8 fan headers. You're good.

 

[SkyNetRising]

Pwm means pulse width. Basically they'll be adjustable. Where as the 3 pin will be direct voltage. Fixed at max rpm all the time.

This is not true. 3pin fans still get regulated normally on 3pin header. Different is the regulation method.
Problem is, when you put 3pin fan on 4pin header. Then correct regulation method has to be specified in BIOS or fan doesn't get regulated.

 

[Gmoney06ss]

This is not true. 3pin fans still get regulated. Different is the regulation method.

How So? Very curious, as I've always been told they are fixed voltage signal and fixed speed.

 

[SkyNetRising]

Voltage is not fixed. 3pin fans get regulated by adjusting voltage.

 

[Gmoney06ss]

I'm confused. Lol. I thought pwm was voltage regulated and DC was a fixed voltage signal.

 

[SkyNetRising]

It's the other way.
With PWM regulation voltage is constant, duration of pulse gets changed.
With linear regulation voltage is changed, but there are no pulses.

https://www.ekwb.com/blog/what-is-pwm-and-how-does-it-work/

 

[Gmoney06ss]

Thanks!!