EVGA SuperNOVA 850 T2 Power Supply Review

Reviews
By Aris Mpitziopoulos
published

EVGA's T2 series consists of Titanium-rated PSUs with capacities ranging from 750 to 1600W. Today, we're looking at the 850W model, which tries to prove it is worth a premium compared to the company's Platinum-rated 850W offering.

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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 SuperNOVA 850 T2's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).

Swipe to scroll horizontally
Test12V5V3.3V5VSBPass/Fail
10% Load3.7mV4.2mV4.7mV4.5mVPass
20% Load4.8mV4.6mV5.6mV5.3mVPass
30% Load6.2mV5.4mV5.9mV6.1mVPass
40% Load6.1mV5.6mV6.6mV6.7mVPass
50% Load6.7mV6.6mV7.6mV8.7mVPass
60% Load7.4mV7.1mV8.3mV9.6mVPass
70% Load7.0mV7.9mV10.0mV8.1mVPass
80% Load8.4mV8.5mV10.6mV9.7mVPass
90% Load7.7mV9.3mV10.8mV10.4mVPass
100% Load9.3mV10.9mV12.2mV11.6mVPass
110% Load10.1mV11.4mV13.2mV12.3mVPass
Cross-Load 15.6mV5.5mV6.0mV12.2mVPass
Cross-Load 28.5mV10.6mV12.6mV10.6mVPass
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Again, as we'd expect from a Super Flower platform, ripple suppression is great. If every PSUs fared this well, our important ripple measurements wouldn't be needed.

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 the screen, the bigger the ripple/noise. We set 0.01V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.

Ripple At Full Load

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Ripple At 110-Percent Load

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Ripple At Cross-Load 1

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Ripple At Cross-Load 2

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Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.

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19 Comments Comment from the forums
  • turkey3_scratch
    Very great unit, as expected. I would have liked to see the threshold for when OTP really kicks in, if it even does. Perhaps duct taping the exhaust grill will do the trick. It's nice to see Superflower use a MOV for a change. I just wish that 3.3V rail would not get so near 3.14V during the transient response tests, but realistically I don't expect the 3.3V rail to get that sudden load these days.

    Also @Aris, are you sure there's only 4 y caps? I thought those blue sleeves store multiple y caps? Or do they not?
    Reply
  • damric
    That's some yummy low ripple for overclocking.
    Reply
  • Aris_Mp
    if you mean the blue components before/after the bridge rectifier, they are X caps and I didn't count them in the EMI filter on purpose.
    Reply
  • ZeusGamer
    I've had the G2 model of this power supply and it's still working great after two years. I'm really impressed by EVGA with these G2 and T2 models.
    Reply
  • JackNaylorPE
    Efficiency is nice... I guess .... but with that 3.3 and 5V performance, I'm not impressed.
    Reply
  • Dark Lord of Tech
    3.3 rail can vary per unit doesn't worry me a bit.
    Reply
  • Dark Lord of Tech
    3.3 rail can vary per unit , doesn't worry me a bit. Every test model for a review can produce different results.
    Reply
  • JackNaylorPE
    To each his own I guess... but for the ridiculous price of $240, I'd want better. The Corsair 860 and coolermaster V850 PSUs finish 1 and 2 and are much cheaper.

    The unit would fail to meet the ATX spec at 5%, and this comes in at a rather dismal 4.5 %... yes, this does vary from unit to unit (and this is a bad thing) If the unit that winds up in the hands of a review site gets two outta 3 rails at 4.5%, I shudder to think what we might get ordering off newegg. In the review graphs, it's the bottom of the chart against all the other PSUs with which its compared.

    The focus on efficiency in the ranking of PSUs in an enthusiast box is a criteria which escapes me ... I never walked into a Porsche dealership where the salesman's first pitch was "this model is great, it has the best gas mileage in our entire line'.
    Reply
  • yyk71200
    Differences in effissiency between gold, platinum, and titanium psus are rather small and do not justify price differences. Quality of output is more important criteria in choosing a psu than small differences in wattage consumed.
    Reply
  • JackNaylorPE
    ^^ ^^
    Reply