yes should be OK, the CPU is max of 70w, and the graphics card is also 75w, recommended 300w min PSU for that:
https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-1050-ti/specifications
Motherboard is basically nothing, at the end of the day is just a big circuit board routing power to different components, and the 2 hard drives you have are next to nothing either, you do need to take into account though, which ram you are going to use, and how many fans etc, LED's, RGB etc, also think about keyboard and mouse as they draw power from the PSU too via the motherboard / USB ports, obviously an RGB mouse or keyboard is going to draw more than a standard set.