520W PSU to a 500W AVR?

[Charlise]

I'm afraid there's sometimes unstable flow of electricity in my place, so I am putting an AVR to my pc which has a 520W PSU, can these two blend without any problems?

 

[Dark Lord of Tech]

MERGED QUESTION
Question from Charlise : "520W PSU to a 500W AVR?"

I'm afraid there's sometimes unstable flow of electricity in my place, so I am putting an AVR to my pc which has a 520W PSU, can these two blend without any problems?