Affected models were sold prior to October 1, 2013
EVGA today issued a notice to customers warning that some of its SuperNova power supplies may suffer from a manufacturing defect. Affected units are prone to shut down at any given time and/or may refuse to power on. According to EVGA, the issue only affects a "small batch" of 1300W and 1000W PSUs, including the SuperNova 1000 G2 (120-G2-1000-XR), SuperNova 1000 P2 (220-P2-1000-XR), and SuperNova 1300 G2 (120-G2-1300-XR).
The issue is a result of "insufficient insulation on the thermal pad by a heatsink," EVGA says. Beyond that, EVGA didn't go into detail about the defect, though the company did say you shouldn't notice any faulty symptoms on any PSU that was purchased on or after October 1, 2013.
EVGA set up a webpage where you can input your power supply's serial number to see if you own an affected model. If so, you'll have the option to register your PSU to proceed with an RMA if you haven't already done so. EVGA says it will offer free expedited shipping where available. In addition. an EVGA t-shirt will be included with each exchange.