Efficiency is defined by the power output divided by the power input and is usually expressed as a percentage. If a PSU were a 100% efficient (which none are) 750 watts of AC power going in would result in 750 watts of DC power coming out (with no waste heat to dissipate). In the real world there are always inefficiencies and power is lost in the form of heat during the conversion process. Newer revisions to the ATX12V Power Supply Design Guide V 2.2 have continued to increase the efficiency recommendations for PC switching mode power supplies and now lists both required and recommended minimum efficiencies.
We measured the AC power input to the two SuperNOVA G2 power supplies with an Extech power analyzer while the total DC load was found by adding all the individual +3.3V, +5V, +12V, -12V and +5VSB loads together.
SuperNOVA 750 G2:
The overall efficiency of the EVGA SuperNOVA 750 G2 power supply is very good and meets the criteria for 80Plus Gold certification, even while operating on 115 VAC and at elevated temperatures.
SuperNOVA 850 G2:
The overall efficiency of the EVGA SuperNOVA 850 G2 power supply is also very good, easily meeting the criteria for 80Plus Gold certification.
80 Plus Program
Note 1: Power Factor ≥0.90 (50% to 100% Load)
Note 2: Tests conducted at room temperature (25°C)
superflower makes top quality
superflower makes top quality PSUs i have 13000G2
I just got a 750G2
I just got a 750G2
The PSU modular connectors are shit. Typical plastic-to-plastic where you must apply humongous pressure so as to get it connected/disconnected (let alone when a couple of years have passed by, thus some heat and whatnot has been around – I expect it to break by then).
Also, the Sata cables would just not fit, so I’m stuck with a Molex-to-Sata adaptor, while I mail EVGA about it.
That’s unfortunate to hear.
That’s unfortunate to hear. The Super Flower branded Leadex Gold 750 has the best modular sockets and cables I’ve ever used. Certainly a pleasure to use after years with Seasonic’s horrible ‘death grip’ cables/sockets. The fit is firm and secure, but requires no excessive force. Same applies to the motherboard-end connectors, with the 24 pin one going in easily even on the first insertion. The SATA and 4-pin molex connectors are still fairly tight, but no worse than any others I’ve experienced (and that 4-pin molex is just a hideous, hideous design to begin with).
I had hoped that the G2 would be using the same connectors as the leadex, just without the LEDs, but it sounds like this isn’t the case.
That’s funny. I haven’t had
That’s funny. I haven’t had any issues with the cables or connectors. They’re super flexible, silicone even, and the “plastic shit” connectors make a good, solid, tight connection without having to do any forcing or any of that ridiculousness. I don’t expect them to break anytime in the lifespan of this PSU, not very easily anyway. The SATA power cables fit perfectly and weren’t difficult to connect what-so-ever.
Hi, I’m a bit of a newbie to
Hi, I’m a bit of a newbie to this, or I can’t read lol, but does this PSU come with a 4-pin molex power connector? (I will use it for the NZXT Hue+ which uses a 2-pin male molex connector for power). I will need it to have power directly from the PSU, so will I be able to do this straight out of the box?
Lists the connectors on the
Lists the connectors on the second page, looks like you would be good.