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EVGA SuperNOVA 850W G3 Power Supply Review

Author: Lee Garbutt
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Manufacturer: EVGA
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Specifications and Packaging

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The EVGA Supernova 850W G3 power supply is rated for a combined, continuous output power of up to 850 watts at 50°C operating temperature. The PSU incorporates a single +12V rail that can deliver up to 70.8A (849.6W) on the +12V output.  The PSU includes universal AC line input (automatically adjusts the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.  

EVGA Supernova 850W G3 PSU Specifications:

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(Courtesy of EVGA)

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Packaging and Parts

The EVGA Supernova 850W G3 power supply arrived packed inside a shrink-wrapped retail box showcasing the unit’s features and specifications.  

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The power supply is wrapped in a black fabric bag and protected by thick foam inserts.

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In addition to the power supply, the box contains a power cord, mounting screws, a detailed User Manual, Velcro cable ties, test connector, and a package of modular cables.

The 850 Supernova G3 power supply comes with a good assortment of eleven modular cables and one 4-pin Molex to 4-pin FDD adapter. (See table above for connector count and cable lengths.)

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(2) 4+4 pin CPU cables, (1) 24 pin ATX cable, and (4) 6+2 pin PCI-E cables

Note: Two of the PCI-E cables are fitted with one 6+2 pin connector while two more PCI-E cables come with two 6+2 pin connectors for a total of four cables and six connectors.

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(4) Peripheral device cables (three SATA and one Molex) and FDD adapter


January 25, 2017 | 06:49 PM - Posted by Anonymous (not verified)

Who cares about the 850W? The 1000W version has been reviewed more than 2 months ago by jonnyguru http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=494

PCPER always showing us the latest and greatest! Where is the "I sold my soul to nvidia or EVGA to get a free trip to Vegas" sticker on this "article"?

January 25, 2017 | 07:34 PM - Posted by Kraaketaer

Who cares about 1000W? No relevant combination of modern hardware requires even remotely that much power - an OC'd 6950X with Titan X Pascals in SLI might edge over 700W under power virus loads, but nowhere near 1000. And under normal gaming loads power draw would be far less.

Now stop being an a**. This is a well written and researched, thorough review. And of course JonnyGuru gets an early sample - OklahomaWolf is pretty much regarded as the bee's knees in PSU testing. He probably gets more or less what he wants*. Publishing a high quality review now that units are actually available seems like a good idea to me.

*at least as much as any HW reviewer does.

October 26, 2018 | 10:35 AM - Posted by Anonymous22222 (not verified)

What? this was such a well-written review. No disrespect to JohnnyGuru, but doesn't even take noise measurements, which are arguably one of the more important things to take into account when purchasing a consumer power supply...

January 25, 2017 | 09:42 PM - Posted by Anonymous (not verified)

Does this site ever stop hocking keyboards and powersupplies?

January 26, 2017 | 08:28 AM - Posted by Kraaketaer

Positive review of a good product != hocking.

Quality PSUs don't get the attention they deserve/should have. The importance of including a good PSU in your PC build is something that needs to be communicated more, not less, and reviews like this are a part of that. Of course, there's also the tendency for makers of low-cost crap products to not send them out for review, which unfortunately few publications have the funds to do anything about themselves.

January 27, 2017 | 06:36 AM - Posted by scajjr2

Last 2 EVGA power supplies I tried in the past few months were both DOA. Have gone back to Corsair.

November 14, 2018 | 10:30 AM - Posted by disgustedwithtrolls (not verified)

Hocking: to spit up phlegm. To pawn. etc.

Hawking: to sell aggressively; to hunt with bird of prey. Also Stephen Hawking.

The ripple / noise is excellent. I haven't had an EVGA PS fail yet, might be lucky.

This is a good, in depth review. You, Anonymous, are clearly just a flinger of shit, a fool, trying to rise to the level of a troll. Doubt you even read the article.

PCPer, sorry about the shit flinging monkey there. Good article.

January 1, 2019 | 07:17 PM - Posted by SC00BYD00BY (not verified)

I'm not sure where you go the fan is quiet. Ever other review and users have the same issue with these G3 power supplies. In ECO mode they are worse. The aggressive fan curve for ECO that fan spins up at max rpm and is by far 40db in noise and runs from 5 - 10 minutes.

Here are the fan specs for that model.
EVGA H1282412HA (12V, 0.35A, 2170 RPM, Hydro Dynamic Bearing" fan.

Though not in ECO mode the fan curve isn't quite that aggressive. It will still hit max though and spin for 5 - 10 minutes as well.

You know it is loud when you are gaming with sealed headphones on and the power supply fan kicks on and all your teammates ask what is that noise.

It is far from being silent and quite like you put in the review. IT is the loudest power supply on the market now.

January 1, 2019 | 07:18 PM - Posted by SC00BYD00BY (not verified)

I'm not sure where you go the fan is quiet. Ever other review and users have the same issue with these G3 power supplies. In ECO mode they are worse. The aggressive fan curve for ECO that fan spins up at max rpm and is by far 40db in noise and runs from 5 - 10 minutes.

Here are the fan specs for that model.
EVGA H1282412HA (12V, 0.35A, 2170 RPM, Hydro Dynamic Bearing" fan.

Though not in ECO mode the fan curve isn't quite that aggressive. It will still hit max though and spin for 5 - 10 minutes as well.

You know it is loud when you are gaming with sealed headphones on and the power supply fan kicks on and all your teammates ask what is that noise.

It is far from being silent and quite like you put in the review. IT is the loudest power supply on the market now.

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