Summary and conclusion
The overall performance is decent and not far off the majority of competing offerings. Only the Super Flower Leadex VII XG 850W is clearly ahead of the Asus Rog-Strix-850G-Aura-Gaming.
The Enermax Revolution D.F.12 850W is a tiny power supply near the SFX-L form factor. I can’t say I’m overly supportive of compact PSUs, as the compact PCB size isn’t conducive to airflow while increasing thermal load. This is exactly the case here, with an average noise level of over 37 dBA, which is a pretty high level. Therefore, I cannot recommend this device for users for whom noise is a top priority. However, with an output of up to 460 W, the noise level is in the range of 25-30 dBA, making it bearable for normal users. It should not be forgotten that such a compact power supply is intended for an equally small ATX case, where users should not have such high demands on noise anyway.
The overall performance is decent. The power supply doesn’t stand out from the crowd, but it’s not far off from other, larger offerings. The overall performance would get a nice boost with tighter load regulation and better transient response on the side rails. Nonetheless, the 12v rail performance is most important as this is what is primarily used in today’s systems, and with this power supply, the 12v rail performs well in all scenarios. One thing that needs to be improved is the high inrush currents. A larger NTC thermistor or an additional thermistor is required to lower them.
The previous record for compact ATX power supplies was 130mm and was set by the EVGA SuperNOVA G7 line, with the flagship of the line offering a maximum output of 1000W. Now Enermax can claim to have the smallest ATX v3.1 PSU at 122mm long, which is impressive considering I tested it at up to 200% load for 0.1ms and it passed all tests. At around $140, this PSU isn’t as affordable as others of similar capacity and specification, but with computer hardware, usually the smaller something is, the more expensive it gets. In addition, the individually sleeved cables drive up production costs.
The Enermax Revolution D.F.12 850W is a no-brainer if you’re looking for the smallest ATX power supply available on the market today that offers high efficiency, high enough overall performance and ATX v3.1 compatibility. There is also a white version that costs slightly more than the black version. Enermax should find a way to lower the prices of the D.F.12 models to make them at least 20 euros more competitive.
Full performance at 47°C Sufficiently high overall performance ATX v3.1 and PCIe 5.1 compatible Correctly set protection functions Super compact dimensions Patented dust-free rotation function (D.F.R.) Extremely efficient platform Good 12V transient performance Good ripple suppression Long bridging time High processing quality Compatible with the alternative power saving mode (ALPM) Fully modular Sufficient cables and connections, including a 12V 2×6 cable (600W) Long cables Adequate distance (150 mm) between peripheral connections ZIC DBB fan Ten-year warranty |
Not exactly cheap High average noise performance High inrush currents Poor load regulation on the secondary busbars Unfavorable transient response on the secondary busbars Increased standby power |
Many thanks to Aris, whose data I can and will continue to use in the future if readers request such power supply tests.
The original appeared on hwbusters.com
Enermax Revolution D.F. 12 850W ATX 3.1 (ETV850G)
Abhol-/Versandbereit in 1-3 Werktagen | 125,14 €*Stand: 21.05.24 02:22 | |
Lagernd im Versandlager - Lieferzeit 2-5 Werktage | 126,49 €*Stand: 20.05.24 23:47 | |
Auf Lager | 129,90 €*Stand: 21.05.24 02:35 |
- 1 - Introduction, overview and technical data
- 2 - Unboxing, cables and protective circuits
- 3 - Teardown: Topology, components, workmanship
- 4 - Load Regulation, Ripple Suppression, Transient Resonse
- 5 - Hold-Up Time, Timings, Inrush-Current
- 6 - Average Efficiency and PF
- 7 - Fan curves and noise
- 8 - Summary and conclusion
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