Recently put together a build for my brother, had a 6700+board lying around, gave them to him for the build. We bought an RX570 and a Corsair 550W PSU, assuming that would be enough, given that AMD reccomends 450W. Come yesterday, I've put the machine together and it wouldn't display anything. I decided to just get some sleep and worry about it the following day.
Come today, I've just gotten home and tried the system with my GTX 1660 Ti, with which the system displays fine. I tried with no card, displays fine, but as soon as I put the 570 in there, the system either boot loops or doesn't output video. I've tried the card in my own machine, and it boots and displays windows fine.
I honestly have no clue what is going on.
Brother's system:
Motherboard: GIGABYTE GA-H170M-DH3
CPU: Intel i7-6700
Memory: Corsair Vengance 16GB DDR5
GPU: GIGABYTE Radeon RX 570 Gaming, 4GB
PSU: VS550
My system:
Motherboard: GIGABYTE Aorus B450 Pro Wifi
CPU: AMD Ryzen 5 2600
Memory: G.Skill Trident-Z RGB 16GB DDR5
GPU: Zotac Gaming GTX 1660 Ti Twin Fan, 6GB
PSU: GIGABYTE G750H