How to check how many wats my psu has without opening case?

[jaguarskx]

That would be illegal in America, not sure elsewhere, as the sticker has the various certifications required to sell them here. You could get someone in big trouble for ripping UL listings off products and selling them. Kinda like the mattress labels, pull them off before you sell and it's illegal, after and it's ok.

Yeah, you don't want to rip those lables off, especially the ones on mattress. You could wind up in jail.

Serta counting sheeps go to jail.

 

[Mobius]

Attach a variable load to it, and keep winding the resistance up until the PSU starts smoking.

VOILA - there's your rating.

 

[pengwin]

lol