EVGA SuperNOVA 750 G5
As a company, EVGA was founded in 1999 and is well known in the DIY computer industry for its high-performance video cards, motherboards, and other computer components. Recently, EVGA has expanded its product offerings to include power supplies which of course draws our interest to it today. Currently, EVGA has a few lines of power supplies including the SuperNOVA series. For this review, we are looking at the SuperNOVA 750 G5 (model number 220-G5-0750-X1) which is one of EVGA’s mid-capacity units in its G5 series. It is produced in conjunction with FSP.
FSP Group is one of the few actual power supply manufacturers and can be found providing OEM services for a number of other brands at various times including OCZ, Zalman, AOpen, Antec, SilverStone, Super Talent, Sigma, EVGA, and many more. This wide distribution of power supplies by FSP is not surprising given that it has been in business since 1993 and is one of the top 10 producers of power supplies in the world. FSP is also regarded as a manufacturer of basic workhorse type power supplies that “just gets the job done,” although some of its previous high powered computer power supplies have been plagued by power quality issues.
SuperNOVA or Blackhole?
The EVGA SuperNOVA 750 G5 is the first power supply we have seen from EVGA here at TheFPSReview. This particular unit is another unit that is fitting into what is the “mainstream” segment when it comes to capacity, as it clocks in at 750W and placement in EVGA’s product stack. With that being the case, this unit is going to be running into a good bit of competition which is great for consumers, but tough for EVGA and everyone else slugging it out here. EVGA, though, has had a number of hits among their power supplies before this little (can we call 750W little?) guy came about. So, there is some pedigree to fall back on as the SuperNOVA 750 G5 takes on some industry heavyweights. However, before we go all Buster Douglas on ourselves, let’s first see what EVGA has to say about this unit:
The EVGA SuperNOVA G5 joins the elite ranks of the EVGA 80 PLUS Gold power supplies. As the successor to the award-winning G3 series, the G5 power supplies continue to push the envelope with the latest certifications and Intel power-on standards. Starting with 80 PLUS Gold certification, fully-modular cable design, 100% Japanese capacitors, and an ultra-quiet 135mm Fluid Dynamic bearing fan with EVGA ECO mode, these power supplies are built for performance and silence.
Let’s move on now and see what we can expect when a user purchases the EVGA SuperNOVA 750 G5 power supply in retail in terms of documentation, accessories, cable count, rail layout, output characteristics, and general build quality.
Table Of Contents
Paul is a long time PC hobbyist and tech enthusiast having gotten his start when he broke his first C64 quickly followed by breaking his first IBM XT. Most notably however, for 12 years, he served as the... More by Paul Johnson
While the EVGA 750 G5 is competent, it's inferior to its predecessor, the 750 G3 and to competitors.
- Full power at 47 degrees Celsius
- Tight load regulation
- Long hold-up time
- Low inrush current
- Fully modular
- Poor transient response
- High Vampire Power
- Low efficiency with 2% load
- Not compatible with the alternative sleep mode
- Small distance between connectors
Specifications and Part Analysis
The SuperNOVA 750 G5 achieves a decent overall performance score, which however is lower than its main competitors, the Corsair RM750x and the Seasonic Focus Plus Gold 750W. Unfortunately, FSP, the manufacturer of EVGA's new G5 line, didn't pay much attention to the fan speed profile, so the 750 G5 is noisy. Moreover, its vampire power exceeds 0.25W with 230V input, so it fails to meet even the lowest Cybenetics efficiency standard (ETA-S). The SuperNova 750 G5 definitely fails to make our list of the best power supplies.
EVGA's high numbered G, P, and T lines (G2, G3, P2, and T2) exclusively used Super Flower's Leadex platforms, which are among the best in today's market. Nonetheless, recent U.S. tariffs affected manufacturers with production lines in China, so EVGA had to turn to another OEM for the new G5 line, which will replace the G3 models. Probably this is the best time to grab a G3 PSU, even a G2 if you manage to find any before they vanish from the stores. At publication time, Newegg was still selling the G3 in the U.S. for $109 while the G5 was priced $30 lower.
The G5 line is based on an FSP platform, that uses an Active Clamp Reset Forward topology. Briefly this is a budget platform able to deliver long hold-up times even with small bulk caps and high efficiency levels. Still its performance cannot see eye-to-eye half-bridge and full-bridge topologies equipped with LLC resonant converters.
|Max. DC Output||750W|
|Efficiency||80 PLUS Gold *|
|Noise||LAMBDA-S+ ( 35-40 dB[A]) *|
|Intel C6/C7 Power State Support||✓|
|Operating Temperature (Continuous Full Load)||0 - 50°C|
|Over Voltage Protection||✓|
|Under Voltage Protection||✓|
|Over Power Protection||✓|
|Over Current (+12V) Protection||✓|
|Over Temperature Protection||✓|
|Short Circuit Protection||✓|
|Inrush Current Protection||✓|
|Fan Failure Protection||✗|
|No Load Operation||✓|
|Cooling||135mm Fluid Dynamic Bearing Fan (MGA13512HF-A25)|
|Semi-Passive Operation||✓ (Selectable)|
|Dimensions (W x H x D)||150 x 85 x 150mm|
|Weight||1.63 kg (3.59 lb)|
|Form Factor||ATX12V v2.4, EPS 2.92|
* Not certified yet by Cybenetics. According to our measurements the PSU falls into this noise category. There is no efficiency (ETA) classification, because of the high vampire power which puts it off Cybenetics' charts.
|Total Max. Power (W)||750|
Cables & Connectors
|Description||Cable Count||Connector Count (Total)||Gauge||In Cable Capacitors|
|ATX connector 20+4 pin (600mm)||1||1||18-22AWG||No|
|4+4 pin EPS12V (700mm)||2||2||18AWG||No|
|6+2 pin PCIe (700mm)||2||2||18AWG||No|
|6+2 pin PCIe (700mm+150mm)||2||4||18AWG||No|
|4-pin Molex (550mm+100mm+100mm+100mm)||1||4||18AWG||No|
|FDD Adapter (100mm)||1||1||22AWG||No|
|AC Power Cord (1420mm) - C13 coupler||1||1||18AWG||-|
Plenty of cables and connectors are provided with the 750 G3. It would be nice if the EPS and PCIe connectors used thicker, 16AWG gauges, but this is not a super strong PSU, so we will let this slide. What we cannot let go, though, is the small distance between the peripheral connectors. With only 100mm you will probably fall into compatibility problems with larger chassis. This is why we recommend at least 150mm gap between the SATA and the 4-pin Molex connectors. Finally, the absence of in-cable caps is good news, since it creates a trouble-free cable routing and management processes.
We strongly encourage you to have a look at our PSUs 101 article, which provides valuable information about PSUs and their operation, allowing you to better understand the components we're about to discuss.
|PCB Type||Double Sided|
|Transient Filter||4x Y caps, 2x X caps, 3x CM chokes, 1x MOV|
|Inrush Protection||NTC Thermistor & Relay|
|Bridge Rectifier(s)||1x HY GBJ2506P (600V, 25A @ 100°C)|
|APFC MOSFETS||2x ROHM R6020KNX (600V, 20A, 0.196Ohm)|
|APFC Boost Diode||1x ROHM SCS306AM (650V, 6A @ 120°C)|
|Hold-up Cap(s)||1x Rubycon (450V, 390uF, 3,000h @ 105°C, MXG)|
|Main Switchers||1x Infineon IPA80R310CE (800V, 10.6A @ 100°C, 0.31Ohm)|
|Reset Switch||1x Infineon IPD80R1K4CE (800V, 2.3A @ 100°C, 1.4Ohm)|
|APFC/Switching Controller||FSP 6600 IC|
|Topology||Primary side: Active Clamp Reset Forward Secondary side: Synchronous Rectification & DC-DC converters|
|+12V MOSFETS||4x Infineon IPP029N06N (60V, 100A @ 100°C, 2.9mOhm)|
|5V & 3.3V||DC-DC Converters:4x Infineon BSC042N03LS (30V, 59A @ 100°C, 4.2mOhm) PWM Controllers: ANPEC APW7159C|
|Filtering Capacitors||Electrolytics: 2x Nippon Chemi-Con (1-5,000 @ 105°C, KZE), 2x Rubycon (3-6,000 @ 105°C, YXG), 1x Rubycon (4-10,000 @ 105°C, YXF) Polymers: 15x United Chemi-Con|
|Supervisor IC||Weltrend WT7527 (OCP, OVP, UVP, SCP, PG)|
|Fan Model||Protechnic Electric MGA13512HF-A25 (135mm, 12V, 0.28A, Fluid Dynamic Bearing Fan)|
|Rectifier||1x CET CEF02N7G FET (700V, 1.3A @ 100°C, 6.75Ohm)|
|Standby PWM Controller||FSP 6601 IC|
On the primary side, an ACRF (Active Clamp Reset Forward) topology is used with a single FET being the main switcher, while another FET plays the role of the reset switch. On the secondary side, a synchronous rectification scheme is used by the +12V rail, and the minor rails are generated through a pair of DC-DC converters. All heatsinks are small, and there is a strange bridge connecting the APFC and the primary heat sinks, which is mostly for aesthetics rather than doing something of importance (e.g., balancing the operating temperatures of those heat sinks). Finally, the overall design is clear, so the airflow is increased, and on the secondary side, there aren't many electrolytic caps; on the contrary, FSP used many polymer caps to filter ripple.
The transient filter has all the necessary parts. There is also inrush current protection through an NTC thermistor, which is supported by a bypass relay.
Only 390uF are enough for the bulk cap of a PSU that utilizes an ACRF topology, to offer a much longer than the required (17ms) by the ATX spec, hold-up time.
The photos above show the main switching and reset FETs of the ACRF topology.
The +12V FETs are installed onto a small heat sink. Moreover, both VRMs are located on a small vertical board.
The main PCB hosts a small number of electrolytic caps, along with several polymer ones. Many polymer caps are on the modular PCB.
EVGA SuperNOVA 750 G5, 80 Plus Gold 750W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-G5-0750-X1
Pros: - SILENT (even when gaming, usually) - 10 year warranty (who provided a 10 year warranty on anything anymore?) - Fantastic support (read below) - Fully modular
Cons: Price? Initial price is high (even with a deal). BUT, it will pay for itself with increased efficiency AND it comes with piece of mind (10 year warranty), so, no cons.
Overall Review: The thing is silent, but honestly. This runs a server and the fan doesn't spin up at all, even at start up! I'm running a Xeon 1230v3 with 5 WD Red HDDs. My 850W SuperNOVA (not the one I'm reviewing) made a sound similar to coil whine. Contacted support, which was quick to respond and help. They had me record some audio and determined I should send it back and they initiated an RMA. It's nice to deal with a company that will stand behind their warranty. I was even able to keep original while waiting for replacement. I'm just really impressed. I will have not purchased three more SuperNOVAs (of different wattage) UPDATE: The replacement model had the same sound. Neither tech support nor I could figure out what was causing the issue but it seemed to be something between my system and the G5, so they sent an upgrade! They upgraded me from the 850 G5 to the 850 GA. No more noise, and a VERY impressed customer. I, for one, will be purchasing EVGA for the foreseeable future. Bravo.
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