Question Microstutters / fps drops


Dec 14, 2019
Hello everyone!
I'm having issue with my PC for months but now is bothering me more than ever.. sooo Every part of it is brand new (few months old max) EXCEPT the PSU which is 3-4 years old now. I tried few different games Fortnite/ CS GO/ Metro Exodus and Witcher 3 + few benchmarks and in all of them i notice microsttuters and fps drops. I tried different GPU drivers/installed fresh windows/High balanced power mode disabled game bars and mode and razer synapse. When the microsttuter happens i saw that my gpu usage + power drops with MSI AFTERBURNER. The problem is there even with FULL STOCK PC - RAM, GPU, CPU so its not from my overclocks. Last night i tried like 2-3 times to install Forza horizon 4 and during installation screen went black and pc wasnt responding and the light of the motherboard was switching from VRAM to CPU, after restart its all fine but that happened 2 or 3 times. I think i had the OC on that time tho, didnt try full stock but that's not the case. main problem is the stutters! I can add pictures of graphs and stuff, just tell me what would be helpful to solving the problem.. Thanks !

● CPU: AMD Ryzen 5 2600 (4150 OC / 3.875V) + Arctic Freezer 34 Esports Duo
● GPU: Gigabyte RX 580 8GB (1450/2250 OC) + 50%PW + 100mV
● RAM: Kingston HyperX Predator 16 GB CL15 (2 x 8 GB) 3000MHz with XMP Profile 1
● MOBO: Gigabyte b450 aorus m + latest bios F50
● Adata XPG SX6000 Pro 256GB M.2 PCIe (OS) + SSD Kingston a400 120gb + 1TB Seagate Barracuda 7200
● PSU: Cooler Master (600W) B600 RS-600-acab-d3
● OS: Copy of Windows 10 Pro 1909 (recently installed)
● AMD DRIVER: 19.20 (older version)
● MONITOR: AOC C24G1 144hz with Freesync
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