EVGA SuperNOVA 650 G1+ PSU Review: Efficient & Silent
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Ripple Measurements
To learn how we measure ripple, please click here.
The following table includes the ripple levels we measured on the 650 G1+’s rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V, and 5VSB).
Test | 12V | 5V | 3.3V | 5VSB | Pass/Fail |
---|---|---|---|---|---|
10% Load | 8.2mV | 11.9mV | 9.5mV | 7.2mV | Pass |
20% Load | 9.7mV | 13.4mV | 12.8mV | 9.2mV | Pass |
30% Load | 11.1mV | 15.1mV | 16.3mV | 11.3mV | Pass |
40% Load | 11.5mV | 16.0mV | 18.1mV | 12.4mV | Pass |
50% Load | 13.3mV | 16.7mV | 20.5mV | 13.2mV | Pass |
60% Load | 14.1mV | 17.4mV | 22.1mV | 14.2mV | Pass |
70% Load | 15.9mV | 18.3mV | 24.1mV | 15.3mV | Pass |
80% Load | 16.1mV | 19.6mV | 27.2mV | 18.1mV | Pass |
90% Load | 18.5mV | 21.9mV | 30.0mV | 22.5mV | Pass |
100% Load | 19.0mV | 24.6mV | 32.3mV | 27.9mV | Pass |
110% Load | 19.9mV | 29.4mV | 35.3mV | 38.1mV | Pass |
Cross-Load 1 | 10.7mV | 14.3mV | 16.2mV | 9.0mV | Pass |
Cross-Load 2 | 19.5mV | 25.2mV | 30.0mV | 29.6mV | Pass |
Ripple suppression was very good at 12V, and merely satisfactory on the 5V and 5VSB rails. Moreover, we would like to see less than 30mV under full load on the 3.3V rail.
Ripple Oscilloscope Screenshots
The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V, and 5VSB). The bigger the fluctuations on-screen, the bigger the ripple/noise. We set 0.01 V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.
Ripple At Full Load
Ripple At 110-Percent Load
Ripple At Cross-Load 1
Ripple At Cross-Load 2
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Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.
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WINTERLORD i read all your guys articles weather im in the market for new or not and i read that article and almost right off the top the article was killed with oh you can get the g3 for same price hah anyways guess if you hadnt someone woulda been quick to mentionReply -
dunn.md Your review is based on the $110 MSRP. This PSU is currently selling for $69.99 on Amazon. Would you highly recommend this PSU at this significantly lower price point?Reply -
DSzymborski The EVGA G3 650W can be bought for $69.99 also and it's much preferable.Reply
Like about 2/3 of the 850 or so individual PSUs EVGA is selling, I can't figure out exactly who the target market is for this. -
HERETIC-1 Calling this G1 "SUPERNOVA" is a bit on the nose.Reply
These are manufactured by FSP.
EVGA's excellent G2 and G3 SUPERNOVA's are manufactured by SUPERFLOWER.... -
Melon_seed Thank you for the review. I shall drop this off my list. Now its either Superflower leadex II or if I am lucky, Seasonic focus plus.Reply