We would like to thank Enermax for supplying the review sample.
Enermax also offers special TUF Gaming Alliance certified versions of the RevoBron models. In this review, we will take a look at the strongest member of the line with 700 W power output. Besides the cameo paintjob, the PSU comes bundled with three RGB fans and a Coolergenie intelligent, as Enermax calls it, fan controller. This is a mainstream unit meant for users who don't care all that much about efficiency, but still want a quite strong, branded power supply capable of coping with up to two graphics cards. In our opinion, though, everyone should make efficiency and their corresponding certifications an important point of consideration since the more efficient, the lower the carbon footprint, which is a factor when it comes to conserving our planet's valuable resources.
Nowadays, there aren't very many 80 PLUS Bronze units since manufacturing more efficient (80 PLUS Gold and ETA-A) platforms is much more affordable than it was a few years ago. Higher efficiency platforms waste less energy as heat, which reduces thermal loads and, consequently, lowers noise output. In other words, if you want a quiet PSU, you should look at the efficient ones first.
The bundle is rich, including the nice-looking RGB fans, a Coolergenie fan controller and the cables for their installation, fixing bolts, Velcro straps, 3M adhesive strips, and some paperwork.
|Enermax ERB700AWT Features & Specs|
|Max. DC Output:||700W|
|Efficiency:||ETA-A- & 80 PLUS Bronze|
|Intel C6/C7 Power State Support:||✓|
|Operating Temperature:||0°C - 40°C|
|Protections:||Over Voltage Protection|
Under Voltage Protection
Over Power Protection
Over Temperature Protection
Over Current Protection
Short Circuit Protection
|Cooling:||120 mm Twister Bearing Fan (ED122512H-FD)|
|Dimensions:||152 mm (W) x 87 mm (H) x 142 mm (D)|
|Weight:||1.39 kg (3.06 lb)|
|Compliance:||ATX12V v2.31, EPS 2.92|
|Price at Time of Review (excl. VAT):||$99.99|
There is no semi-passive operation, which is commonly absent in Bronze units, and the provided warranty looks short compared to the warranty periods other manufacturers provide, even in this mainstream category. Pricing is also increased comparatively, but this PSU includes many useful accessories.
|Enermax ERB700AWT Power Specs|
|Total Max. Power||700W|
Cables and Connectors
|Description||Cable Count||Connector Count (Total)||Gauge||In Cable Capacitors|
|ATX connector 20+4 pin (600 mm)||1||1||18AWG||Νο|
|4+4 pin EPS12V (710 mm)||1||1||18AWG||Νο|
|6+2 pin PCIe (500 mm+150 mm)||2||4||18AWG||Νο|
|SATA (450 mm+150 mm+150 mm+150 mm)||2||8||18AWG||Νο|
|4-pin Molex (450 mm+150 mm+150 mm+150 mm)||1||4||18AWG||Νο|
|FDD Adapter (+105 mm)||1||1||20AWG||Νο|
|AC Power Cord (1400 mm) - C13 coupler||1||1||16AWG||-|
Only the cables that will definitely be used (ATX and EPS) are native, with all others being modular. While enough connectors are available, it would be nice to see two EPS connectors. Finally, there are no in-cable caps for better ripple filtering, and at 150 mm, the distance between peripheral connectors is ideal.
|Enermax ERB700AWT Parts Description|
|PCB||PCB Single Layer|
|Transient Filter||4x Y caps, 2x X caps, 2x CM chokes, 1x MOV|
|Bridge Rectifier(s)||1x GBU1506 (600V, 15A @ 100°C)|
|Inrush Current Protection||NTC Thermistor|
|APFC MOSFETs||2x Champion GP28S50G (500 V, 28 A @ 150 °C, 0.125 Ohm)|
|APFC Boost Diode||1x CREE C3D06060A (600V, 6A @ 154°C)|
|Hold-up Cap(s)||2x Nichicon (400 V, 470 uF & 220 uF or 690 uF combined, 2000 h @ 105°C, GG series)|
|Main Switchers||2x Champion GP28S50G (500 V, 28 A @ 150 °C, 0.125 Ohm)|
|Combo APFC/PWM Controller||Champion CM6800TX & CM03X Green PFC controller|
|Topology||Primary side: Double Forward|
Secondary side: Semi-Synchronous Rectification & DC-DC converters
|+12V||2x PFC PFR30L60CT (60V, 30A @ 50% duty cycle) |
2x SG65N02P FETs
|Driver for +12V FETs||Syncpower SP6019|
|5V & 3.3V||DC-DC Converters: 4x UBIQ QM3006D FETs (30V, 57A @ 100°C, 5.5mΩ)|
PWM Controllers: 1x APW7159C
|Filtering Capacitors||Electrolytics: Chemi-Con (4,000-10,000 h @ 105°C, KY series), Chemi-Con (1,000-5,000 h @ 105°C, KZE series)|
|Supervisor IC||Sytronix ST9S429-PG14 (OCP [2x 12 V channels, OVP, UVP, PG)|
|Fan Model||ED122512H-FD (120 mm, 12 V, 0.35 A, Twister Bearing Fan)|
|Rectifying Diode||Plain Diode|
|Standby PWM Controller|
TinySwitch-LT TNY177PN (18W Peak)
This is CWT's CSB platform. It offers a very good performance per dollar ratio and is an older platform with some modern features, like the DC-DC converters in the secondary side which regulate the minor rails.
The bulk cap and filtering capacitors are of high quality since they are respectively provided by Nichicon and Chemi-Con. Besides electrolytic caps, several polymer ones are also used.
Soldering quality is decent.
The cooling fan uses a twister bearing that will last much longer than a sleeve bearing.