Power Supply Quality

As part of our testing, we also check output parameters are within specifications, as well as voltage ripple and line noise.

Main Output
Load (Watts) 213.95 W 534.42 W 798.98 W 1064.02 W
Load (Percent) 20.38% 50.9% 76.09% 101.33%
  Amperes Volts Amperes Volts Amperes Volts Amperes Volts
3.3 V 1.85 3.39 4.63 3.38 6.95 3.37 9.27 3.35
5 V 1.85 5.12 4.63 5.11 6.95 5.09 9.27 5.06
12 V 16.22 12.22 40.55 12.21 60.82 12.17 81.09 12.16

 

Line Regulation
(20% to 100% load)
Voltage Ripple (mV)
20% Load 50% Load 75% Load 100% Load CL1
12V
CL2
3.3V + 5V
3.3V 1.1% 14 18 24 34 18 20
5V 1.3% 14 18 26 36 20 28
12V 0.5% 16 22 28 40 38 24

The electrical performance of the Enermax Revolution D.F. X 1050 PSU is commendable, especially for a high-performance unit, reflecting a strong emphasis by the design engineers on the primary 12V rail. This rail exhibits excellent regulation, with a variance of less than 0.5% across the nominal load range, and effective filtering demonstrated by a maximum voltage ripple of 40 mV. However, the voltage regulation and filtering on the 3.3V/5V rails are not as proficient, with regulation approximating 1.2% and voltage ripple extending up to 36 mV, though well within the design limit of 50 mV.

As part of our standard testing, we test the primary protections of all PSUs we review (Over Current, Over Voltage, Over Power, and Short Circuit). The protections of the Enermax Revolution D.F. X 1050 PSU engaged normally. The OCP of the 12V rail immediately engaged at nearly 130% of the unit’s maximum capacity, a high figure for such a PSU design.

Conclusion

The Enermax Revolution D.F. X 1050 PSU stands out as a compelling option for those in pursuit of a high-performance power supply unit. The build quality is robust, showcased by its intriguing external aesthetics with a textured paint finish, fully modular cables, and an elegant touch of RGB lighting on the frosted side display. Furthermore, the inclusion of high-quality Japanese capacitors throughout the unit underscores its reliability and durability. Its external allure is matched by a compact and cleanly executed internal design carried out by SANR Electronic Technology (also known as Casecom), a seasoned yet uncommon OEM in the high-end PSU arena. Despite being a relatively rare name in high-end PSU circles, they have exhibited a good design and assembly job, reflecting a blend of experience and quality assurance in the product.

When it comes to power quality, the Enermax Revolution D.F. X 1050 shines, particularly with its exceptional voltage regulation and filtering on the 12V rail. The unit boasts outstanding energy conversion efficiency that transcends the 80Plus Platinum benchmark at low-to-medium loads, showcasing its operational efficacy. However, a noticeable dip in efficiency is observed when the PSU is heavily loaded, relegating it to an 80Plus Gold certification under such circumstances.

Thermal performance of the Enermax Revolution D.F. X 1050 is average, showing a tendency towards higher temperatures under heavy loads in adverse environments. Nonetheless, at or near room temperature, the unit performs well, maintaining good thermal figures. When it comes to noise levels, the unit is practically inaudible at low loads in standard room temperatures, a feature that most users will appreciate. However, as the load increases, particularly in higher ambient temperatures, the noise level rises but remains within a tolerable range for most users. The fan's maximum operational speed is attained before the unit reaches its maximum power output, which could be a concern in high-temperature environments.

Value-wise, the Enermax Revolution D.F. X 1050 stands out as a competitively priced option given its high power output, currently retailing at $135. This price point is particularly attractive when compared to less powerful units from competitors retailing at similar prices. The 10-year manufacturer warranty is a cherry on top, providing a sense of security and trust in the product's quality and durability. The comprehensive set of features, compliance with ATX 3.0 standards, and the lengthy warranty make the Enermax Revolution D.F. X 1050 a worthy investment for those in need of a high-power output PSU with a mix of aesthetic and functional attributes. However, its limited cooling performance and display of thermal stress when the unit is very heavily loaded may warrant consideration for users who plan to utilize this PSU in sustained high-demand settings.

 
Hot Test Results (~45°C Ambient Temperature)
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  • evanh - Thursday, November 9, 2023 - link

    12HPWR plug from ATX3.0 is known flawed in design. It cannot sustain spec'd rating. Any chance the supplied one is actually the replacement newer 12V-2x6 plug from ATX3.1 instead?
  • evanh - Thursday, November 9, 2023 - link

    And if not already a 12V-2x6 cable set, do they plan to offer free replacements when they are available?
  • jonnyGURU - Monday, December 4, 2023 - link

    "12V-2x6" "cable set" is not a thing.
  • Samus - Thursday, November 9, 2023 - link

    I wouldn't say that. I haven't had any trouble with the 12HPRW connector, though I run a 4080 not a 4090.
  • evanh - Friday, November 10, 2023 - link

    Don't expect that to last. The plug is poor design.
  • E.Fyll - Friday, November 10, 2023 - link

    12VHPWR and 12V-2x6 cables are identical. Only the connector on the equipment's side changes and only the length of the Sense pins.
  • evanh - Friday, November 10, 2023 - link

    Yep, and the power pins in the plug are a whole new design to correctly handle high currents.
  • E.Fyll - Friday, November 10, 2023 - link

    Not at all. As I said, they are identical.
  • evanh - Friday, November 10, 2023 - link

    They are plug compatible for sure. Very much intended to fit the same socket. But the female pins inside the plugs are completely new.
  • E.Fyll - Sunday, November 12, 2023 - link

    I hate repeating myself but everything about the plugs and wires is identical, save for the length of the Sense pins on the equipment's side. The new connector only ensures that the PSU (if compatible) will not engage if the plug is not fully inserted, that's about all there is to it.

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