Would a diffrent case help I9-9900K with NH-D15 get under 80° peak at extended full load?

[Old_Mc_Donald]

Backstory:
So I recently upgraded my CPU to a I9-9900K and had to replace my cooler from a Cooler Master 240 to a NH-D15 due to the AIO not keeping up with temperatures at all. (30 sec Stress test resulted in 100° Peaks)
I decided to upgrade to the NH-D15 it did a bit better but still not perfect bought 2 extra 140mm Fans which helped significantly.
Temperatures now stabilize at 90° at extended full load. (no thermal throttling still at roughly 5GHz)
I researched why the CPU doesn't hold its 95W TDP and I think it turns out that my Motherboard doesn't support the TDP throttling (or however that is called again) required to keep the CPU at 95W.
My CPU consistently uses 190W+ at full load.
(My case is in a corner, back exhaust to the wall but 10cm away)

Current Build:
Case - Silent Base 600
Motherboard - MSI Z370 SLI Plus
CPU - I9-9900K (not overclocked)
CPU Cooler - NH-D15
GPU - 1050TI

Fans - 3x 140mm (2 Intake front, 1 exhaust Top), 1x 120mm (exhaust back)

Question:
Now on various sites/videos/reviews it says the NH-D15 SHOULD cool my system to about 80° or better at full load. (per my research)
Is my case just not capable of cooling this CPU further?
Would adding the Bottom 140mm and the second top 140mm Fan do anything to help the situation?
Would a different case make any difference?
Would a different location of the case make a difference?

Is any of my research outright wrong?
Am I missing something?

Thnx in advance!

[svmlegacy]

10 minutes ago, Old_Mc_Donald said:

Backstory:
So I recently upgraded my CPU to a I9-9900K and had to replace my cooler from a Cooler Master 240 to a NH-D15 due to the AIO not keeping up with temperatures at all. (30 sec Stress test resulted in 100° Peaks)
I decided to upgrade to the NH-D15 it did a bit better but still not perfect bought 2 extra 140mm Fans which helped significantly.
Temperatures now stabilize at 90° at extended full load. (no thermal throttling still at roughly 5GHz)
I researched why the CPU doesn't hold its 95W TDP and I think it turns out that my Motherboard doesn't support the TDP throttling (or however that is called again) required to keep the CPU at 95W.
My CPU consistently uses 190W+ at full load.
(My case is in a corner, back exhaust to the wall but 10cm away)

Current Build:
Case - Silent Base 600
Motherboard - MSI Z370 SLI Plus
CPU - I9-9900K (not overclocked)
CPU Cooler - NH-D15
GPU - 1050TI

Fans - 3x 140mm (2 Intake front, 1 exhaust Top), 1x 120mm (exhaust back)

Question:
Now on various sites/videos/reviews it says the NH-D15 SHOULD cool my system to about 80° or better at full load. (per my research)
Is my case just not capable of cooling this CPU further?
Would adding the Bottom 140mm and the second top 140mm Fan do anything to help the situation?
Would a different case make any difference?
Would a different location of the case make a difference?

Is any of my research outright wrong?
Am I missing something?

Thnx in advance!

Your motherboard certainly does support changeing the default power limits:

 

These settings are located here:

BIOS Advanced Mode -> OC -> CPU features.

 

In older generations, long duration is typically set at TDP, and short duration at 1.25x TDP. Not sure about newer Intel CPU's. Make changes as you see fit.

 

If it overheats for a little bit, then the long power limit kicks in, consider shorting up the turbo power duration.

[jones177]

Strange.

My i9 9900k uses 133 watts max stock and 158 watts with a 5ghz all core overclock. At stock the highest temperature is 71c running Cinebench R20.

You must be using Multicore Enhancement to use that much power.  Look for a video on your motherboard on how to switch it off.

 

Your case is a hot box.

My i9 9900k uses a Cooler Master H500 Argb with a NH-D15 with a single fan.  

[Daethz]

Any case with actual front air intake instead of blocked front panels like the one you have (or any nzxt case) will have substantially better airflow.

If you don't want to do that yet I suggest buying yourself ridiculously good case fans like the Noctua A12x25's

 

I saw an immediate 10c+ drop in my 5950x when i took off the front and top panels on my old nzxt H710i case

I get those cooler temps Normally now with the corsair 5000D case