Summary: It is confirmed. OCZ made a strong come back into the high-end PSU category with the release of the ZX series. The smallest member of the ZX series exhibited high efficiency through out 20-100% load range, its voltage regulation was within 3% for all major rails and handled full power even after we cranked up the temperature inside our hot box. On top of that it managed to pass all of our very difficult Advanced Transient Response tests.
Pros: Handled full power at over 50°C ambient, High efficiency, All rails stayed within 3% voltage regulation, Passed all Advanced Transient Response tests, Good ripple/noise suppression, Fully modular design, Lots of SATA/peripheral connectors
Cons: Lacks an MOV in the transient filtering stage, Price is on the high side, Low efficiency at loads below 65W, +12V slope does not ramp smoothly in Turn-On Transient tests
Summary: Final Thoughts
OCZ has put together a very solid power supply in the ZX Series. In our testing the rails were very solid, with only minor ripples way under the threshold that we like to see. The ZX Series has a 80 PLUS Gold certification, which means it will run 87% efficient at 100% load. Talking about operation the ZX Series is extremely quiet and you can barely tell that it is on, your CPU fan will be louder than this power supply.
Pros: Good performance, Completely modular, 80 PLUS Gold certified, 5 year warranty