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Enermax Revolution DUO 700W Gold PSU Review

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Posted February 24, 2017 by Josh Jackson in Cases & PSU

Overview

Hardware:
 
Manufacturer:
 
Price at time of Review: $96.99 on Amazon and Newegg
 

WHAT WE LIKED:

Nice outer design, Great practical level of performance, Fan noise is easily controlled, Includes good quality cable management strips
 

WHAT WE DISLIKED:

Non modular design and the wire colors show between the connectors and the heat shrink
 
BOTTOM LINE:
If you're worried your PSU doesn't get enough airflow because of your case design, the Revolution Duo has a great solution for that. Enermax seems to be offering a great unit here, but the price is keeping it in a highly competitive bracket, making it harder to stand out.
by Josh Jackson
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Test Setup and Results

Let’s first start off with the system we’ll be using to test this power supply. The link will take you to my PSU calculator results, but here’s a full list as well.

http://outervision.com/b/arm2M8

CPU: Intel Core i7-7700K @ 4.5 GHz

Motherboard: Aorus Z270X-Gaming 7

RAM: Geil Evo X 16 GB @ 3200 MHz

GPU: Sapphire R9 290 Vapor-X

SSD: Crucial MX300 750 GB

HDD: Seagate 250 GB 7200 RPM

CPU Cooler: NZXT Kraken X62

Case: NZXT S340 Elite

Peripherals: EpicGear – Defiant Keyboard, Zora Mouse, Thunderouz Headset

OCCT PSU.1

You can see I even left a good extent of gaming peripherals plugged in because every little bit helps, but even then our load wattage is only coming to roughly 466W. For starters, we’ll be using OCCT’s PSU test to stress the unit. The recommended wattage is 516W from our online calculator. The simple fact is that we won’t be stressing this PSU to the max, but at the same time I don’t have the equipment necessary to do that kind of testing. Typically, we recommend going about 25% above the load wattage your system will need to have a comfortable PSU operation. My slight mishap is that I forgot that the big number is what Outer Vision recommends, so 25% of my load wattage is closer to 600W. Well, it’s my first PSU review so hopefully I get a little leniency for overlooking that. On the other hand, this gives a real world test of the voltage regulation the Revolution Duo will give to a builder being safe with their power needs. Besides, it’s very likely if you came to the forums and asked for advice on PSUs for a similar system, that you’d receive a recommendation of this amount of wattage. I feel like this is a great way to give a practical look at a unit since the best technical way to review a unit is Jonnyguru style. Below is the ATX specification for regulation tolerance and ripple. I won’t be testing ripple just yet, but I plan to add an oscilloscope to my bench as soon as possible.

Supply (V) Tolerance Range, min. to max. (V) Ripple, p. to p., max. (mV)
+5 ±5% (±0.25 V) +4.75 V to +5.25 50
−5 ±10% (±0.50 V) −4.50 V to −5.50 50
+12 ±5% (±0.60 V) +11.40 V to +12.60 120
−12 ±10% (±1.20 V) −10.80 V to −13.20 120
+3.3 ±5% (±0.165 V) +3.135 V to +3.465 50
+5 standby ±5% (±0.25 V) +4.75 V to +5.25 50

I actually did two voltage regulation tests on the Revolution Duo. The first was at the lowest fan speed, just to see if more airflow would help in any way. As you can see, the regulation with the lower airflow was pretty fantastic, especially since we aren’t trying to stress the unit to it’s max.

Enermax Revo Duo Low

Next, I tried cranking the knob to the max speed to see if regulation would tighten up at all. There was some very minor changes, but the only improvement was the 5v rail not moving at all. Unfortunately, the movement was so small that I can’t completely call it outside of the margin of error here. The great news is that if you plan on using this for a 550W or lower system, you should have excellent voltage regulation.

Enermax Revo Duo FullFinally, I measured the dB levels of the unit at full speed. While the marketing claims that two fans can be quieter, I found the unit to put out more noise than any PSU unit I’ve used by quite a bit when turned all the way up. This would normally bother me, but Enermax was brilliant in allowing the user to change the fan speed. As a result, it’s extremely easy to keep the noise level right where you want it. While the unit never seemed to heat up that much to begin with, I can say that the airflow feels stronger as a result of the dual fan design.

Enermax Revo Duo dB

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