TheDoddsy

I recently bought a used Rx 580 GPU and i checked on GPU-z to see and if it was counterfeit and then I looked at the watts it needs and the GPU only needs 150 Watts and its using 10 Watts while I have 400 Watts spare please help me I really want to be able to game on my computer and my PC specs are an AMD a10-9700 processor with 16 GB of ram and I have an Rx 580 8 GB GPU and an ATX-500b power supply please help me.