Hi! All, Noob to this forums :)
 
I got a EVGA 550 B3 off Ebay and got my PSU tester out and plugged all the connectors in and it works but the PG (Power Good) number is within the limits but is flashing and the tester bleeps.
 
Does it with ECO mode on and off and was wondering if anyone has come across this before, its not failing and giving an LL on the tester but not come across the blinking and bleeping before when it hasn't reported a voltage failure.