i9 9900K Thermal Throttling

[MrTesla]

Hello! I just built a new system and I have some concerns about my CPU. Whenever I do a stress test on only the CPU in AIDA64 Engineer Free Version, I get temps between 75-85. However, if I add "Stress Cache", "Stress FPU" or anything like that, I get thermal throttling. I do not think this is an airflow issue because the airflow of the PC is already overkill. My thermal paste application does not seem to be problematic, and my cooler should be more than sufficient. The specs of my system are as below. The CPU is not overclocked, Gigabyte's XMP Profile1 is active. 

CPU: i9 9900K

Motherboard: Gigabyte Z390 Aorus Pro

CPU Cooler: be quiet! Dark Rock Pro 4

RAM: Corsair Vengeance LPX DDR4 3000MHz CL16

Main Drive: WD Black NVMe SSD 500 GB

Graphics. AMD Radeon RX580

Case: Corsair Carbide 270R

Case Fans:

2x 140mm Noctua NF-P14s redux-1500 PWM as two front intakes

1x 140mm Noctua NF-P14s redux-1500 PWM as top exhaust

1x 120mm Noctua NF-F12 PWM as back exhaust

 

Is this problematic? Did I just lose the silicon lottery?

 

Thanks!

[xg32]

whats the core voltage? and by thermite throoting do you mean 100C?

[MrTesla]

1 minute ago, xg32 said:

whats the core voltage? and by thermite throoting do you mean 100C?

If I remember correctly the core voltage is around 1.32V but I might be wrong I'll check ASAP.

HW Monitor shows the package and most of the cores hit 100C and in AIDA64 I can see it throttles between 5%-12%

[Stormseeker9]

9900k is a space heater

[jones177]

Are you using multi core enhancement?

[xg32]

9 minutes ago, MrTesla said:

If I remember correctly the core voltage is around 1.32V but I might be wrong I'll check ASAP.

HW Monitor shows the package and most of the cores hit 100C and in AIDA64 I can see it throttles between 5%-12%

1.32v is way too much for stock (4.7), just lower it as long as it's stable.

[5x5]

I mean the 9900K is a space heater and needs heavy duty cooling. The Dark Rock Pro is getting overwhelmed

 

[LukeSavenije]

Just now, 5x5 said:

I mean the 9900K is a space heater and needs heavy duty cooling. The Dark Rock Pro is getting overwhelmed

 

a drp should do this just fine

 

maybe try to remount your cooler and tighten it up a little more?

[5x5]

1 minute ago, LukeSavenije said:

a drp should do this just fine

 

maybe try to remount your cooler and tighten it up a little more?

He's likely running it in MCE state. That's why the DRP is getting overwhelmed

 

[Constantin]

Ring ratio (-3), if 50Ghz then 4.7Ghz

CPU Ratio Mode=Dynamic mode

[MrTesla]

10 minutes ago, jones177 said:

Are you using multi core enhancement?

I'm not sure but probably no

[MrTesla]

3 minutes ago, 5x5 said:

He's likely running it in MCE state. That's why the DRP is getting overwhelmed

 

Can you explain that a bit more?

[jones177]

3 minutes ago, MrTesla said:

I'm not sure but probably no

The CPU would not run at 1.32 unless you set it or you have multi core enhancement on.

 

Here is my last i9 9900k setup with 5ghz on all cores.

As you can see I only use 1.272v.

It uses a NH-D15 with a single fan so probably less cooling than a Dark rock Pro 4.

 

Here is how hot it gets under load.

[Constantin]

Set Core Ratio to 47

[Constantin]

 

[MrTesla]

18 minutes ago, jones177 said:

The CPU would not run at 1.32 unless you set it or you have multi core enhancement on.

 

Here is my last i9 9900k setup with 5ghz on all cores.

As you can see I only use 1.272v.

It uses a NH-D15 with a single fan so probably less cooling than a Dark rock Pro 4.

 

Here is how hot it gets under load.

I made that number up sorry lol. You can see my specs here:

 

[jones177]

4 minutes ago, MrTesla said:

I made that number up sorry lol. You can see my specs here:

 

 

 

Here is a nice Gigabyte overclocking video.

Maybe it can help you get your temps down.

 

[xg32]

3 hours ago, MrTesla said:

.

try setting a simple manual voltage and see if it helps, my 9900k is a piece of crap in terms of silicon lottery and it still only needs 1.24v for 4.7, setting ur cpu at 1.25 instead of 1.32v alone should improve temps alot, as for MCE you have to watch a overclocking video for your board.