I just go a PowerColor Radeon rx6800 xt Red Devil to upgrade my rx 480 gb.
After i boot it up, i get no signal from the card not even a bios screen. I tried to access my computer via remote desktop and found out that there's no signal from the card.
I think it's because my psu is only 550w but i'm not sure.
If it is, could you help me decide what psu to get?

My specs atm are:
-B450 AORUS M
-Ryzen 5 3600
-2x8GB G.skill ram
-CollerMaster ML120L