Update your post to include full system hardware specs and OS information.
Included PSU: make, model, wattage, age, condition (original to build, new, refurbished, used)? History of heavy use for gaming, video editing, bit-mining?
Disk drive(s): make, model, capacity, how full?
Make and model monitor? Connectivity to computer (GPU, iGPU) video cable (VGA, HDMI, DP)?
Much more information needed.