Load Regulation, Hold-Up Time & Inrush Current
To learn more about our PSU tests and methodology, please check out How We Test Power Supply Units.
Primary Rails And 5VSB Load Regulation
Load Regulation testing is detailed here.
Our hold-up time tests are described in detail here.
The hold-up time we measure is over 17ms and the power-good signal is accurate.
For details on our inrush current testing, please click here.
Measured inrush current is at normal levels.
Load Regulation And Efficiency Measurements
The first set of tests reveals the stability of the voltage rails and the 650 G3’s efficiency. The applied load equals (approximately) 10 to 110 percent of the PSU's maximum load in increments of 10 percentage points.
We conducted two additional tests. During the first, we stressed the two minor rails (5V and 3.3V) with a high load, while the load at +12V was only 0.1A. This test reveals whether a PSU is compatible with Intel's C6/C7 sleep states or not. In the second test, we determined the maximum load the +12V rail could handle with minimal load on the minor rails.
|Test #||12V||5V||3.3V||5VSB||DC/AC (Watts)||Efficiency||Fan Speed||PSU Noise||Temps (In/Out)||PF/AC Volts|
|1||3.532A||1.995A||1.989A||0.991A||64.804||85.234%||1355 RPM||33.5 dB(A)||38.04°C||0.944|
|2||8.090A||2.980A||2.984A||1.191A||129.781||89.126%||1368 RPM||33.9 dB(A)||38.23°C||0.965|
|3||12.990A||3.487A||3.498A||1.391A||194.928||90.474%||1392 RPM||34.4 dB(A)||38.57°C||0.980|
|4||17.882A||3.984A||3.982A||1.591A||259.801||90.904%||1406 RPM||34.4 dB(A)||38.89°C||0.986|
|5||22.440A||4.976A||4.979A||1.791A||324.747||90.839%||1443 RPM||36.8 dB(A)||39.55°C||0.990|
|6||27.006A||5.973A||5.975A||1.996A||389.784||90.540%||1496 RPM||37.8 dB(A)||40.85°C||0.992|
|7||31.567A||6.969A||6.968A||2.199A||454.702||89.917%||1527 RPM||37.0 dB(A)||41.60°C||0.994|
|8||36.135A||7.955A||7.959A||2.401A||519.649||89.211%||1585 RPM||38.1 dB(A)||42.76°C||0.995|
|9||41.133A||8.461A||8.472A||2.403A||584.753||88.580%||1641 RPM||39.0 dB(A)||43.91°C||0.995|
|10||45.885A||8.956A||8.957A||3.015A||649.631||87.793%||1716 RPM||39.8 dB(A)||45.34°C||0.995|
|11||51.221A||8.960A||8.963A||3.016A||714.552||87.002%||1728 RPM||39.9 dB(A)||46.49°C||0.996|
|CL1||0.098A||13.018A||13.003A||0.005A||110.615||83.854%||1605 RPM||38.4 dB(A)||42.72°C||0.960|
|CL2||54.120A||1.002A||1.003A||1.002A||674.042||88.307%||1496 RPM||37.8 dB(A)||43.25°C||0.995|
Load regulation is extra tight on all rails, showing this platform's capabilities. Still, several of Seasonic's Prime and Focus platforms achieve even better performance in this section.
The 650 G3 doesn't have a problem operating under very high ambient temperatures. However, its small-diameter fan will make its presence known. At increased temperatures, the fan profile goes wild. This can be a problem for some folks. The compact enclosure and small PCB need good airflow in order to last through EVGA's seven-year warranty.
When it comes to efficiency, the SuperNOVA 650 G3 scores well. It easily satisfies the 80 PLUS Gold requirements, even under our highly stressful testing conditions. Of course, this is an inherently efficient platform that was dropped to Gold levels in order cut its production costs and give enthusiasts a less expensive option.
MORE: Best Power Supplies
MORE: How We Test Power Supplies
MORE: All Power Supply Content
Wouldn't 650 watts be too little for a system with two high end cards anyway?
Nvidia recommends 600W for a system with a 1080 Ti in it.
this article contains power consumption for all high-end Nvidia GPUs. Another one including AMD ones will be released soon.
LOL I haven't thought of it that way, but Chevrolet sold a lot of Nova cars (started out as the Chevy II in 1962) between 1968 and 1987. They sold 1.7 million between 1968-1974 in 3rd generation alone so the name didn't bother the customer too much.
Anyway I'm assuming the same G3 series that plagued Aris' review of the G3 450 is now okay with the 650.
EDIT: I saw in that original review an update stated that EVGA advised all units since that review are made by SF and not outsourced to RSY. Aris does that mean the first batch of those G3 450s were RSY built?
Once again, excellent review by @Aris !! The best & most thorough PSU reviewer currently !!