I unplugged it from the outlet it was plugged into and it hasn’t worked since, I did have an app running but I don’t know if that had anything to do with it, I’ve tried other outlets and nothing seems to be working. I have the Omen Obelisk if u want to check it out?
from your description it sounds like the PSU has gone poof.
the only real test is to replace it with anotherunit for testing. do you have access to another computer you could play swapsies with for a few minutes?
is that the 300W or 500W unit?
I suggest the Corsair CX-550 as a starting point. a good budget unit 5 year warranty
the TX series by corsair is better, more efficient and longer warranty.
any Seasonic PSU except the S12III.
the only real requirement to fit the case is a standard ATX form factor PSU. the ones I mentioned are ATX