Power Supply Quality & Conclusion

Power Supply Quality

The electrical performance of the Enermax Revolution D.F. 12 750W PSU is excellent for its class, showcasing strong voltage regulation on all outputs. The 12V rail maintains an impressive regulation of just 0.8%, with the 5V and 3.3V lines also performing well at 1.2% and 1.0% respectively. Ripple suppression is similarly top-notch, with the 12V, 5V, and 3.3V lines registering low values at 30 mV, 22 mV, and 22 mV respectively. These figures indicate a level of performance that is exceptional within this PSU's category.

During our thorough assessment, we evaluate the essential protection features of every power supply unit we review, including Over Current Protection (OCP), Over Voltage Protection (OVP), Over Power Protection (OPP), and Short Circuit Protection (SCP). The Enermax Revolution D.F. 12 750W PSU successfully passed all crucial protection tests, confirming its effectiveness in safeguarding both the PSU and connected components. The unit displayed standard Over Current Protection (OCP) settings for the 3.3V and 5V rails, activating at 122% and 126% respectively, which are typical values for these specifications. The 12V rail’s OCP activation at 136% is slightly higher, aligning with industry practices where manufacturers tailor protections to meet power excursion guidelines.

Conclusion

The Enermax Revolution D.F. 12 750W PSU presents a solid option in the mid-range PSU market, reflecting a balanced blend of quality and performance. The unit's smaller-than-standard chassis is a notable design choice that's potentially beneficial for compact builds. And although the OEM behind this PSU may have had its reputation somewhat tarnished in the past, Rui Sheng Yuan is a company with a wealth of experience in power electronics and Enermax is highly confident about the reliability of this platform. This is supported by a substantial 10-year manufacturer's warranty.

From an energy conversion efficiency perspective, the Revolution D.F. 12 PSU does well, surpassing the standards required for 80Plus Gold certification. Where this unit truly shines is in terms of power quality, as it is offering exceptional performance that surpasses common expectations for its class. It provides stable and reliable power delivery across all outputs, with excellent voltage regulation and ripple suppression, which should entice users prioritizing longevity and reliability above all else.

Thermally, the Enermax PSU manages its heat aggressively, maintaining low internal temperatures even under heavy loads. Its thermal performance is finely tuned to offer acoustic comfort at lower loads with a zero-RPM fan mode up to roughly 300 Watts in typical operating conditions. When the system is heavily loaded, the fan does become audible and even may get very loud if the ambient temperature is very high, though this is expected and aligns with Enermax's thermal management strategy of favoring temperatures over acoustics. Ultimately, this focus on operating temperatures helps to ensure that the unit not only performs well (and consistently so), but also doesn't take unnecessary wear and tear in the process.

Considering its current $130 price tag, the Enermax Revolution D.F. 12 750W PSU might seem a tad expensive relative to its wattage and certifications. However, its robust performance, ATX 3.1 compliance, and long warranty period offer considerable value, making it a viable choice. Still, we wouldn't mind seeing a price cut; even taking off 10% would really help to give the Revolution a clear leg-up over its competition in the crowded PSU market.

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