First Step: Find out your SMPS / PSU - UL File Number
Find Example UL File No of Cooler Master RS-500-ASAA
another Example of UL File No: UL File Number for Enermax Galaxy 1000W
Second Step: Log on to / or click on this link
Enter UL File Number in "UL File Number" box (second last) click on "Search"
for Eg. if your PSU has UL File Number: E134014 ---> Original Manufacturer is "ENERMAX TECHNOLOGY CORP"
Find Example UL File No of Cooler Master RS-500-ASAA
another Example of UL File No: UL File Number for Enermax Galaxy 1000W
Second Step: Log on to / or click on this link
Enter UL File Number in "UL File Number" box (second last) click on "Search"
for Eg. if your PSU has UL File Number: E134014 ---> Original Manufacturer is "ENERMAX TECHNOLOGY CORP"