EVGA SuperNOVA 550 G2 Power Supply

PROD LINK: SuperNOVA G2 Product Page
PRICE: $84.99 @ NewEgg
Price is at the time of testing!

PSU Name – Overshoot Transient Tests
VSB On VSB to 100%, 12V Off to 100%, 12V
O-Scope Shot O-Scope Shot O-Scope Shot

It comes as no shock to me that the overshoot transient test results look this good. Every time I’ve seen this platform, it has simply been excellent here with no untoward voltage peaks, no going into the negative, and no issues at all with rise time. We’ll just move on.

And that means this unit now has a date with the hot box. Because this unit is small, normally the box doesn’t get that hot. But today, we’re in the middle of a heatwave and even in the basement, it’s more than thirty degrees in here. I’ll turn on the exhaust fan in the hot box, leave the intake off, and that should be enough to get the box plenty hot today.

SuperNOVA 550 G2 – Hot Load Tests
Test # +3.3V +5V +12V DC Watts/
AC Watts
Eff. P.F. Intake/
Progressive Load Tests
1 1A 1A 3.5A 55.9W/
117.7V 84.3% 0.960 30°C/
3.30V 5.03V 12.19V
2 1.5A 1.5A 8A 117.4W/
116.7V 88.9% 0.971 33°C/
3.30V 5.03V 12.18V
3 3.5A 3A 20A 279.5W/
115.5V 90.5% 0.990 36°C/
3.29V 5.01V 12.15V
4 5.5A 5A 32A 443.2W/
116.0V 89.6% 0.994 41°C/
3.27V 5.00V 12.12V
5 7A 6A 40A 553.9W/
115.4V 88.1% 0.995 44°C/
3.26V 4.99V 12.10V
Crossload Tests
CL1 13A 13A 0A 112.2W/
116.1V 82.9% 0.973 38°C/
3.27V 4.98V 12.19V
CL2 0A 0A 45.8A 558.6W/
115.3V 88.7% 0.995 44°C/
3.28V 5.01V 12.09V

* Fanless operation.

And plenty hot it did get. Forty-four degrees. And the unit had no issues with that. It kept the fan off the exact same time period it did in the cold tests.

Efficiency was down from the cold tests, but not to the point you and I should worry about it. We still have a super squeaky clean pass for Gold, and that’s certainly nothing to complain about.

I’ll just calculate the voltage regulation numbers again and see where the unit ends up this time. Let’s see… I get the same number as the cold tests for the 3.3V rail, or 1.2%. That goes for the 5V rail as well at 0.8%. The 12V rail slips to 0.7%, but that’s not enough to make an appreciable dent in the average result, which is 0.9% and still above the line for me to call it excellent in general.

Last but not least, let’s see what the ripple looks like.

SuperNOVA 550 G2 – Oscilloscope Tests
Test # +3.3V +5V +12V
1 O-Scope Shot O-Scope Shot O-Scope Shot
2 O-Scope Shot O-Scope Shot O-Scope Shot
3 O-Scope Shot O-Scope Shot O-Scope Shot
4 O-Scope Shot O-Scope Shot O-Scope Shot
5 O-Scope Shot O-Scope Shot O-Scope Shot
CL1 O-Scope Shot O-Scope Shot O-Scope Shot
CL2 O-Scope Shot O-Scope Shot O-Scope Shot

Hey, is the scope even hooked up? Let me check… and yeah, it’s hooked up. Holy macaroni with guacamole is this ever outstanding. We have less than 10mV on all rails, and this may have just set a new benchmark for ripple control. I mean, this is even lower ripple than I got with the Antec CP-850, and that unit blew my mind. It’s not often you see a unit beating Delta at their own game, but here we are.