- May 16, 2007
Ask yourself these if your would:
All safety features to prevent fires, shocks etc. OCP/OVP/OPP/Short Circuit Protection are based on a single event failure, not multiple events. Meaning these are minimally design to handle one abnormal condition and not two. Gamer Nexus did two abnormal conditions: Running the power supply above normal operating power for a time period followed up to an OPP condition -> The power supply has a rating, max rating 750w. If you start operating it above 750w before testing any of the safety features you are causing 2 failed events together (operation above design and then testing OPP). If they took the power supply from 60% to OPP protection, a single failure event either internal or external of the power supply then that would indicate better if the Power Supply was usable after the protective feature was activated. I do think these are crappy Power Supplies but not from their testing.
- Is any of their OPP testing by some guidelines, a consistent testing procedure which can be peered reviewed? No
- Where is the control standard or samples? Did you see them doing the exact same test and samples for a number 750w Seasonics in similar price range and maybe one other like a number of 750w EVGA power supplies? Would they with their testing methodology have the same result? We don't know
- They did show that OPP worked on all samples, where does OPP protection state that the PS has to work afterwards, some PS have protective fuses on the inside which are not repairable by the user, meaning you have to have it professionally repaired and tested to make sure it was not the PS that failed vice a downstream load. Now granted I would like to know if the power supply after an OPP protection event is still good and not destroy my machine on a restart. Still there was no promise after an OPP event the PS is still good, now Master Cooler states their power supplies will protect themselves from an OPP event, if true or not I am not sure.
- They said this process was over 5 months in the making, they didn't have time to test their methodology against other power supplies to validate the results? Is that not somewhat disingenuous?
- Did any of those power supplies failed during normal operating specified conditions before the tests? Indicating the failure rate they plastered all over the video Newegg feedback chart? Note: people are more likely to leave feedback with a failure, skewing any meaning of those graphs.
I'm not sure any psu manual I've read says the protection only works once, maybe something the average user is unaware of. probably better if it failed gracefully and blew a fuse on a protection event rather than powering on after some time.