Question Looking for a Cybenetics report that Tom's Hardware referenced - EVGA SuperNova 650 P2

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motoxnate

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Jul 10, 2019
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Hi all,

I am doing some research on power efficient PSUs for lower power draw applications. I have been trying to reference the Cybenetics reports where possible because they are comparable to each other and have very in depth tests.

In this article Tom's Hardware references the efficiency stats for the EVGA SuperNova 650 P2. I want to get a closer look at the low power stats from that test, but the data does not appear on the Cybenetics website for me and there are no links or references in the article to the data.

If anybody is able to find this data sheet, or if anyone from Tom's Hardware has a link to it I would greatly appreciate the help.
 
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COLGeek said:
That article was written 9 years ago. Just making sure you are aware of that, as that could have some bearing on the availability of any information.
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Yeah, I know it's old. Seems weird that the data would just be missing though. PSUs last forever and when looking for more low wattage efficiency, lower power PSUs tend to be better. Unfortunately the market has started moving towards 750w+ as computers draw more power
 
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PSUs really don't last forever. They do degrade over time.

If efficiency is your concern, consider higher rated models. Many are confused by efficiency ratings vs. quality so we put this together:

Info - Power Supply Efficiency Ratings (80 Plus)

Often, members will ask questions regarding troubleshooting a system and the first question will be "What are the specifications for your system (make/model of all installed components)?" A typical response will include something like "750w Gold PSU". That sort of response offers nothing...
forums.tomshardware.com forums.tomshardware.com

Understood on wattage, this is largely because of GPU requirements. Not that long ago, 450w PSUs represented a sort of sweet spot for use. Now, they are next to impossible to find.
 
Upvote 0 Downvote
COLGeek said:
PSUs really don't last forever. They do degrade over time.

If efficiency is your concern, consider higher rated models. Many are confused by efficiency ratings vs. quality so we put this together:

Info - Power Supply Efficiency Ratings (80 Plus)

Often, members will ask questions regarding troubleshooting a system and the first question will be "What are the specifications for your system (make/model of all installed components)?" A typical response will include something like "750w Gold PSU". That sort of response offers nothing...
forums.tomshardware.com forums.tomshardware.com

Understood on wattage, this is largely because of GPU requirements. Not that long ago, 450w PSUs represented a sort of sweet spot for use. Now, they are next to impossible to find.
Click to expand...
Yeah and thank you Eximo for the ideas as well.

Really I'm looking for a PSU that can handle probably 250-300W to spin up a lot of hard drives and run a Ryzen 4-5th gen CPU for a home NAS server. I don't want to drop super low and use something like a PicoPSU because of those needs.

The issue is that if the server is idling / running on very low C states a lot of the time, I don't want a PSU that is 60% efficient @ 20w. Ideally, I am looking for a PSU over 80% efficient at 20w. Although I could get a titanium 1000W PSU or something, 90% efficiency at 10% is still 100w and it often drops off severely before that mark.

I have seen that a couple models of the Corsair RM550x actually hit this mark that I am looking for, but others have realized that as well, and they are very hard to find now. I am considering the SuperNova 650 P2 (albeit old) it's very well built and it's not like I'm going to be stressing it by any means.
 
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