Page 1:Cyonic AU-650x Power Supply Review
Page 2:Packaging, Contents, Exterior And Cabling
Page 3:A Look Inside And Component Analysis
Page 4:Load Regulation, Hold-Up Time And Inrush Current
Page 5:Efficiency, Temperature And Noise
Page 6:Cross-Load Tests And Infrared Images
Page 7:Transient Response Tests
Page 8:Ripple Measurements
Page 9:Performance, Performance Per Dollar, Noise And Efficiency Ratings
Page 10:Pros, Cons And Final Verdict
Cyonic is a new company that recently entered the PSU market with offerings based on Seasonic platforms, which offer good performance and reliability. Today we're taking a detailed look at the AU-650x power supply.
Cyonic is the result of a few computer enthusiasts, tech geeks and gamers wishing for better high-end components capable of a more extreme computing experience, according to the company's About Us page. So far, the only computer parts Cyonic sells are power supplies. And thanks to the company's close cooperation with Seasonic, which is one of the best PSU manufacturers, it's off to a stellar start. Cyonic's name is a blend of the words cybernetic and electronic. We can't help but notice the resemblance between Seasonic and Cyonic, since both use the "onic" part. Presumably, this is a great coincidence.
Currently, Cyonic has three PSU lines: the AUx, AU and Arise, and each includes three units. The first two cover the 450W and 650W categories, while the Arise family (currently only available in Japan) ranges between 550W and 750W.
The AUx series is Cyonic's flagship. The three units in the series feature 80 Plus Gold efficiency, fully modular cabling and a Fluid Dynamic Bearing (FDB) fan. On top of that, the AUx models offer compact dimensions, making them compatible with very small cases. The unit we're reviewing today is the highest-capacity 650W model.
In addition to its interesting look, this PSU shares the same platform as EVGA's SuperNOVA 650 GS, which is a new Seasonic design addressing budget-oriented users. It's right below the Seasonic G platform, and focuses more on performance per dollar than absolute performance. Thanks to its high-quality parts, including Japanese capacitors and the FDB fan, Cyonic's AU-650x sports increased reliability backed by a five-year warranty. Although EVGA provides an even longer warranty on its similar offering, five years is still a respectable warranty period.
As you probably figured out, the AU-650x's main competitor is, in fact, EVGA's SuperNOVA 650 GS. And although we expect minimal differences in performance, since both PSUs use the same platform, we're still counting on an interesting comparison in areas like noise output.
The AU-650x is 80 Plus Gold-certified. Thanks to the DC-DC converters it uses for generating its minor rails, the AU-650x is also compatible with the S6/S7 sleep states introduced by Intel's Haswell architecture. On top of that, it can deliver its full power continuously at up to 50 °C ambient, and its suite of protection features includes everything except over-temperature protection. The five-year warranty on the unit is more than satisfactory.
A high-quality FDB fan cools the supply's internals; it's a 120mm unit, since the PSU's compact dimensions won't accommodate anything larger. The AU-650x is only 14cm deep. We're more accustomed to 135mm and 140mm fans, which offer good airflow at lower rotational speeds, helping reduce noise output. Smaller fans do facilitate more direct airflow. However, in order to push the same amount of air as a larger fan, they have to spin faster, inevitably generating more noise. Nevertheless, armed with a tuned fan control circuit, even a smaller fan can operate quietly and effectively.
|Total Max. Power (W)||650|
There is only one +12V rail, and it's capable of delivering this PSU's full power on its own. This is fairly typical of PSUs with DC-DC converters for generating the minor rails, since these converters are fed by +12V.
The minor rails have enough capacity for any modern system covered by a mid-range PSU, while the 5VSB rail has the minimum capacity we'd expect from a new power supply.
Cables And Connectors
|Description||Cable Count||Connector Count (Total)|
|ATX connector 20+4 pin (610mm)||1||1|
|4+4 pin EPS12V (650mm)||1||1|
|6+2 pin PCIe (550mm+100mm)||2||4|
|4 pin Molex (400mm+120mm+120mm+120mm)||1||4|
|FDD Adapter (+110mm)||1||1|
Cyonic equips this PSU with a single EPS connector; in our opinion, it should have at least two. On the other hand, there are plenty of auxiliary PCIe connectors for a 650W PSU. The same goes for the eight SATA connectors spread across two cables. You'll find a quartet of four-pin Molex connectors for peripherals, and a Berg adapter for components that still need it.
Overall, cable length is good, although we would like a little more distance between the peripheral connectors (at least 150mm).
Finally, all of the cables employ standard 18-gauge wires offering low voltage drops and enough flexibility to be routed through your chassis.
Since this PSU features a single +12V rail, we do not have anything to say about its power distribution.
- Cyonic AU-650x Power Supply Review
- Packaging, Contents, Exterior And Cabling
- A Look Inside And Component Analysis
- Load Regulation, Hold-Up Time And Inrush Current
- Efficiency, Temperature And Noise
- Cross-Load Tests And Infrared Images
- Transient Response Tests
- Ripple Measurements
- Performance, Performance Per Dollar, Noise And Efficiency Ratings
- Pros, Cons And Final Verdict