What to do if the PC is cut down under load and without?

Question

Video cards

hello
, the problem is this, I don’t know what to do for 3 weeks already, the
PC is cut down in games, rarely, but a simple one can also be
cut down in tests
, sometimes I play for 5 minutes and sometimes I
gave a friend an hour to check the video card, he also found it (he has a better bp my 600w 80plus standart)
what could happen to her? before that everything worked fine
system
ryzen 3 1200 (max t 50g)
b450m s2h
8gb ram
1 tb hdd
video card r9 380 4gb itx compact(max t 62g)
bp aerocool eco 550w (the problem is not in it)

Answer 1

aerocool eco 550w, what bp does your friend have? If from the same company, try a PSU from fsp
Ps Comments from smart users "You need to understand that the element base of this power supply not only leaves much to be desired, it is simply as cheap as possible and this is essentially a 300-watt unit without all the necessary protections." This is about 600w bp