I tried various drivers, BIOS settings, reset and updated, but the result is the same, the frequency in the load for one core is lower than 4.2 for all 3.8 cores.
I saw tests of other systems in which they were 4.2 / 4.
What could be wrong with my copy?
Is this due to an early processor release series?
AMD Ryzen 5 3600 - Production Date 1920 (20th week)
Cooler Arctic Freezer 34 CO (4 tubes direct contact, tubes together without gaps. Up to 70 degrees holds easily)
ASUS Prime X470-PRO
Crucial Ballistix Sport LT 2x8GB DDR4 PC4-25600 BLS2K8G4D32AESEK (3200 profile included)
ASUS Dual GeForce GTX 1660 Ti OC 6GB GDDR6 DUAL-GTX1660TI-O6G-EVO
FSP Everest 85 Plus 600
SSD Samsung 860 Evo 250GB
All in a well-ventilated enclosure DeepCool Kendomen
Windows 10 1909
BIOS Update AM4 combo PI 188.8.131.52 patch B
In the work, 2 cores were sleeping with a single-threaded load, they worked at the moment the screenshot was taken, it is a little incorrect:
I tested in acceleration mode at 4050 to check cooling, and whether it can work under heavy loads, in my opinion the system copes in this mode with critical tests (The fan still does not work at full power, holds 75):