Task Manager shows high power usage while gaming

Solution 1:

This is not an issue with the power supply. What you're seeing in Task Manager is a feature introduced with Windows 10 version 1809 intended to help users determine which applications are likely to be using more power, based on the application's CPU and GPU load over time.

On laptops, this information can be used to help determine which applications are draining the battery the most. It's of less concern with desktop PCs, so unless your system is somehow shutting down or otherwise actually experiencing a problem under load, you can ignore this field on a desktop system.

You've indicated that you have a GeForce GTX 1060 graphics card installed on your system along with a Ryzen 3 2200G (Raven Ridge). As a quick check, make sure your monitor is plugged into the graphics card and not your motherboard; if it's on the motherboard, you're actually using the processor (integrated) graphics and not the graphics card, which means your GPU is in fact sitting idle. Also, you may need to set the system to use the graphics card in the BIOS; be sure it's is configured to use the PCIe slot first for graphics.

Regardless, your configuration does not exceed the capacity of your power supply. The processor requires 65 W, while the graphics card needs 120 W. These, along with the other parts of the system, would at most require only half of the 600 W capacity of your power supply.