Ryzen 5 2600 core clock jumps unusually high

[Kicajf]

hello people, i have a problem.
My ryzen 5 2600 core clock jumps unusually high on stock settings, sometimes during the game (mostly play cg go) or just browsing.
Sometimes it happens screen freeze and the black screen and I must restart pc.

I did system satbility test with aida 64 CPU, FPU, CACHE,SYSTEM MEM AND GPU together except local disc and everything worked without a hitch. I did a stress test with Prime 95 for one hour and there was no instability .
I installed all the drivers again and still the same thing happens, my memory was on the xmp profile 2- 3200 mhz I put it on the profile 1 -2933 mhz and still the same.
my configuration is
Motherboard: B450 tomahawk max
CPU: Ryzen 5 2600
RAM: Kingston ddr4 16 3200MHz (2x8) HyperX Fury
GPU : Sapphire nitro+ RX 5500 XT 8G GDDR6 SE
PSU : MWE GOLD 750 W 80 Plus gold
SSD : 240GB CRUCIAL BX500 3D NAND SATA SSD
HDD:Toshiba HDWD110 1 TB
will it help if I reinstall the system ? I do not know what to do.
Can someone help me, thanks in advance ...
picture of my pc :

 

[Deleted member 193596]

Sometimes it happens screen freeze and the black screen and I must restart pc.

GPU : Sapphire nitro+ RX 5500 XT 8G GDDR6 SE

fundamentally broken drivers from AMD

 

[Kicajf]

GPU : Sapphire nitro+ RX 5500 XT 8G GDDR6 SE

fundamentally broken drivers from AMD

That's what I thought of for black screen and freezing , but what affect to CPU
core clock jump high ? That is my main concern.

 

[Deleted member 193596]

That's what I thought of for black screen and freezing , but what affect to CPU
core clock jump high ? That is my main concern.

PBO/XFR?

if i remember correctly the boost should be 3.9.

 

[Kicajf]

PBO/XFR?

if i remember correctly the boost should be 3.9.

yes boost should be 3.9
my settings in BIOS are default except xmp profile set to profile 1- 2933MHz ( I'm not much of an expert in BIOS settings so I don't know if they are PBO/XFR or what they are )

 

[Ruru]

It would be a miracle if it would be stable with those clocks. Mine oc'd manually to 4.15 and I had custom water loop.

Obviously there's something wrong in BIOS and just XMP should'nt affect that. Are the CPU multiplier etc at auto?

 

[Kicajf]

It would be a miracle if it would be stable with those clocks. Mine oc'd manually to 4.15 and I had custom water loop.

Obviously there's something wrong in BIOS and just XMP should'nt affect that. Are the CPU multiplier etc at auto?
[/Q

Yes they are set on auto

 

[Caring1]

Looks like overboost function.
Your CPU is running fine as those speeds are temporary.

https://www.amd.com/en/support/kb/faq/cpu-pb2

 

[Kicajf]

Looks like overboost function.
Your CPU is running fine as those speeds are temporary.

https://www.amd.com/en/support/kb/faq/cpu-pb2

Thank you very much Caring1....
I found something about it on some redit forum just half an hour earlier. But nothing was clear to me why it happens.
This artical helped me and solved my doubts.
Thanks again wish you all the best

 

[Mussels]

HWmonitor doesnt read clocks right for ryzen, use HWinfo instead