Are these temps safe for i9-9900k @ 5.1GHZ

[HiGuyz]

I have overclocked my CPU to all core 5.1 GHZ with 1.320V. Idle temps when the CPU is idling at around 0-10% is at 45c to 50c. I am using a cooler master AIO water cooler.

[Hairless Monkey Boy]

Idle temps are irrelevant. What are the load temps?

[HiGuyz]

7 minutes ago, HairlessMonkeyBoy said:

Idle temps are irrelevant. What are the load temps?

Before overclock it would sit at around 60c on 100% load all cores, however 1 or 2 cores would spike to 90c for a bit (on cinebench r20) 

Going to benchmark overclocked now

[Guest]

What motherboard do you have ? 

[HiGuyz]

2 minutes ago, lee32uk said:

What motherboard do you have ? 

Asus z390-p

 

Also, I forgot to mention that cpu-z shows the voltage as high a 1.5v, i have adaptive voltage on so that might be why.

[HiGuyz]

EDIT: the overclock did nothing, cpu-z shows 4.6GHZ during cinebench r20 run instead of 5.1ghz, it even goes down to 4.4 and 4.5 ghz at times

[Guest]

12 minutes ago, HiGuyz said:

Asus z390-p

 

Also, I forgot to mention that cpu-z shows the voltage as high a 1.5v, i have adaptive voltage on so that might be why.

I wouldn't run a 9900K at 5.1GHz on that board. Good chance the cpu will thermal throttle.

[Hairless Monkey Boy]

General advice. 5.1Ghz is a high OC for a 9900K and normally takes an experienced overclocker with very good cooling or a 1-in-1000 chip to get stable at reasonable voltages and temperatures. An inexperienced overclocker is going to have a hard time trying to tame the 9900K in general, even at 4.8-5Ghz. Some things you need to learn about:

 

1. LLC (Load Line Calibration)
   • Vdroop, overshoot, undershoot. Transient response.
2. Vcore vs Vid.
   • SVID
3. Vccsa, Vccio.
4. Adaptive, vs Manual mode.
5. Speedstep, Speedshift, C-States.
6. AVX Offset.
7. Multi-Core Enhancement.
8. ???

So do some studying on these topics, and you might be able to get more out of your chip. Here are some places to start:

 

Spoiler

 

 

 

 

[HiGuyz]

10 minutes ago, lee32uk said:

I wouldn't run a 9900K at 5.1GHz on that board. Good chance the cpu will thermal throttle.

ah

9 minutes ago, HairlessMonkeyBoy said:

General advice. 5.1Ghz is a high OC for a 9900K and normally takes an experienced overclocker with very good cooling or a 1-in-1000 chip to get stable at reasonable voltages and temperatures. An inexperienced overclocker is going to have a hard time trying to tame the 9900K in general, even at 4.8-5Ghz. Some things you need to learn about:

 

1. LLC (Load Line Calibration)
   • Vdroop, overshoot, undershoot. Transient response.
2. Vcore vs Vid.
   • SVID
3. Vccsa, Vccio.
4. Adaptive, vs Manual mode.
5. Speedstep, Speedshift, C-States.
6. AVX Offset.
7. Multi-Core Enhancement.
8. ???

So do some studying on these topics, and you might be able to get more out of your chip. Here are some places to start:

 

  Reveal hidden contents

 

 

 

 

I was following this tutorial that went over most of the things in there https://www.youtube.com/watch?v=rjPXWEgxoxo&t=335s . I will look into more of that using the resources you mentioned

 

[Hairless Monkey Boy]

5 minutes ago, HiGuyz said:

ah

I was following this tutorial that went over most of the things in there https://www.youtube.com/watch?v=rjPXWEgxoxo&t=335s . I will look into more of that using the resources you mentioned

 

Cool! But don't use HWMonitor. Use HWInfo64.

 

Edit:

@HiGuyz Actually that whole video looks quite bad. I had it on silent and skimmed through it, but the settings I saw him using are not great...

 

1. You should try to get an OC stable with 0 AVX offset. 1-2 at most. Certainly not 5...
2. LLC of 6 is okay for a quick and dirty OC, but 4 or 5 will provide superior transient response and more stable OC.
3. Manual voltage should be used when setting your OC. You can switch to adaptive later once you find stable settings.
4. Really hoping he didn't give the false impression that a 5.1Ghz OC on a 9900k is easy....

Edited August 28, 2020 by HairlessMonkeyBoy
More to say.

[Guest]

@HiGuyz

 

You can see how bad the Z390-P is in the video below.