Phoenix, Ariz.&#8212ON Semiconductor touts the industry’s first open ATX power supply reference design certified to meet the so-called “80 PLUS” performance requirements for computing applications.

Fig. 1: The dead Optimod supply. When the switching power supply used in Gary Morgan’s Optimod 8200 (Fig. 1) died, the OEM replacement would have cost around $600. He sought to find another solution.