POWER SUPPLY Apevia 600w
That's probably your issue right there
Apevia power supplies are pretty bad
At least run separate power cables from your power supply to each power input on your GPU
Look into getting a quality power supply sooner rather than later
https://cultists.network/140/psu-tier-list/
Check out the PSU Tier List and multiple hardware review sites before purchasing anything. Never skimp on you power supply
Make sure you have the latest AM4 chipset drivers installed from AMD website
Be sure to update your BIOS to latest available for your motherboard
You didn't list your RAM either .. 32GB of what? Is that 4 x 8GB sticks or 2 x 16GB sticks? What speed are they running at in Windows? Are they installed in slots A2/B2 (2nd and 4th slots away from the CPU socket) if you are running only 2 sticks of RAM?
Are you running any cable extenders INSIDE your case? ..ie PCIe riser cable, etc ..
