Introduction

We would like to thank EVGA for supplying the review sample.


EVGA recently introduced the G6 line to bring back the performance levels of the legendary G2 models, which used Super Flower platforms. For unknown reasons, EVGA broke ties with Super Flower quite some time ago, using other OEMs to fill the void. For the G6 models, it teamed up with Seasonic and used the popular Focus Gold platform, with several upgrades to enhance performance and protection features.

Only 140 mm deep, this is among the smallest 1000 W PSUs available on the market. The chassis is so compact the 135 mm fan almost entirely covers its top. I am used to high power-density SFX and SFX-L PSUs, but as it seems, this trend also moved to ATX units. Compact dimensions help during installation, but usually result in higher noise output since increased airflow is required to cool the parts, which are now closer to each other. The higher the efficiency levels, the lower the thermal loads, so the fan works less. In other words, highly efficient platforms make sense for small PCBs, but are not ideal for Bronze platforms.

The 1000 G6 is fully modular and meets the Gold efficiency requirements of both 80 PLUS and Cybenetics with 115 V input. With 230 V, it is rated as Platinum by Cybenetics. Moreover, noise output is low, Cybenetics A-, which is 25–30 dBA average noise output.

Specifications

Photos

At the face of the box is a photo of the PSU's fan grille, along with the model name and capacity description, in large font. You will find more details on the backside of the box.


Packing protection is good since a foam spacer surrounds the PSU.


The bundle includes the user manual, fixing bolts, Velcro straps, and 24-pin ATX plug to jump-start the PSU.



The cooling fan is almost as large as the top side of the PSU's cover. Besides the AC inlet and power switch on the front side, there is another switch for toggling the PSU's passive operation on/off.


On the two sides, we find stickers with the model description. One of these also depicts the power specifications and safety icons.


The modular panel has 14 sockets; two 24-pin ATX, five peripheral, two EPS, and five PCIe connectors.


The fan grille does not restrict airflow and looks nice. Without looking at the power specifications label, you can easily take this to be a 600 W PSU because of its small dimensions.

Cables and Connectors

The cables are long. It is nice to see 700 mm long EPS and PCIe cables. The EPS connectors use 16AWG gauges, and the same goes for the PCIe cables that host two connectors.


The number of peripheral connectors is adequate, but I disapprove of the small distance between peripheral connectors, especially the 4-pin Molex ones.

Component Analysis

Before reading this page, we strongly suggest looking at this article, which will help you better understand the insides of a PSU.



The PCB is tiny for a 1000 W unit. Compared to the Seasonic Focus Plus Gold platform, this one has several changes, of which the most important is the MCU responsible for the PSU's firmware OPP EVGA states shuts the PSU down when over-power conditions persist for more than 1 ms. In other words, firmware OPP reacts slower than hardware OPP.


The transient/EMI filter stages have all the necessary parts, offering good EMI suppression.


A Metal Oxide Varistor (MOV) handles voltage surges, while an NTC thermistor and relay combination suppresses large inrush currents. The NTC thermistor is covered in heat shrink, which I had to remove for its identification.


The bridge rectifiers are bolted to a leaning heatsink.


The APFC converter uses two Infineon FETs and a single STMicroelectronics boost diode. The bulk caps are by Chemi-Con, and their combined total capacity is 940 uF.


The APFC controller is a Champion CM6500UN.


The main FETs are four Infineon IPA60R190P6 installed in a full-bridge topology. The resonant controller is a Champion CU6901V.


The unit's main transformer isolates the primary from the secondary side and also lowers the voltage.


The FETs regulating the +12 V rail are installed on the solder side of the main PCB.


Two DC-DC converters generate the minor rails. They use six 6x 40030L FETs, and their joint PWM controller is by Anpec.


All caps, both electrolytic and polymer, are provided by good manufacturers.

The 5VSB circuit uses an MCC MBR1045ULPS SBR on its secondary side. The standby PWM controller is an EM8569C.


The supervisor IC is a Weltrend WT7527RA providing the essential protection features, including hardware OPP. There is also a Weltrend WT51F104 for firmware OPP, which also controls the fan's speed.


Many polymer caps are installed on the face of the modular PCB.


Soldering quality is good.


The cooling fan is by Hong Hua, and its model number is HA13525H12F-Z. It uses a fluid dynamic bearing, which means it will last for a while, and its noise output is lower than a double ball-bearing fan with similar specifications.

Test Setup