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Choosing an "850W" power supply - A list for you

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a b ) Power supply
February 14, 2010 9:01:49 AM

Following is a link to PART of a project on which I and several others here are working. I am posting it here to get some new builders opinions on it's usefulness, so if you look I expect you to comment.

This is a list of power supplies that supply 65-75 amps on the 12V rail(s). Most of them will be in the 850W range... but total wattage is not the best way to choose a power supply, as you may have heard. Most of the power you need will be the 12V variety, so it's important to choose your PSU based on that.

So, we are preparing a big list of power supplies, ranked and sorted so that you can find a good one quickly. Often we will supply links to quality reviews.

This is not a complete list yet. This is a very large undertaking and we will be at it for a while yet.... but I hope to have a useful version ready for everyone within a month.

Here is what you need to know about ranks:

Rank 1 - Will contain a maximum of 5 units. If another is added that causes 6 in this rank, one must be removed to rank 2. As power supplies become increasingly sophisticated and of higher and higher quality, the contents of these ranks must also shift.

Rank 2 - Will contain former rank 1 PSUs plus any current models that compete well with them. This list will be large, but somewhat self-limiting as older models go out of production.

Rank 3 - Will contain recommended PSUs that can't quite compete with the better ones but may be desirable for budget or availability considerations.

All rank 1-3 PSUs will have at least 80 Plus certification. There may be a few initial units that do not have this, but they are expected to quickly be replaced or certified, and will be noted.


Rank 4 - Will contain barely adequate PSUs that should only be selected in desperate circumstances. These need not be 80 plus but should have some basic protections and be at least ATX spec as to voltage under whatever load is expected to be placed on them.

Rank 5 - Will have units with serious flaws in design, parts, or performance. Not recommended for any desktop. Any serious violation of ATX specs will land a unit here.

Unrated - Any PSUs on the list that do not have a rating are simply not yet researched, or no good information exists. We may supply some clues to these as we can, for instance who the OEM is, without rating them. It is expected that most of the units listed without a rank will be poorer quality.

Here is the list:

65-75A PSU list (beta stage)

To learn more about what makes a good PSU and why you should care, see my parts guide linked in my sig or stickied at the top of the forum.
February 14, 2010 9:46:51 AM

wow...very nice classification there.
just a random question: does split rails affect anything, or does the classification take that fully into account?
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Related resources
February 14, 2010 11:35:37 AM

Just thought I'd drop in to give a vote of confidence in the Corsair 850TX, and to let all of you know that think that you have to spend an extra $60+ to get a modular to make your cable management look pretty, take a look at what I did with my non-modular 850TX in a HAF 922 case.

http://www.tomshardware.com/forum/forum2.php?config=tom...
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a c 77 ) Power supply
February 14, 2010 1:07:58 PM

List is looking good... :) 

I was reviewing the complete list on the site earlier today and you guys have come a long way... 160+ reviews/rankings.
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Best solution

February 14, 2010 7:21:16 PM

Very nice list props man. One thing though where is the Antec Cp-850 :(  or is the list only standard form factor?

Edit: Sorry never mind man I found it guess I probibaly should have looked at the Big list first
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a b ) Power supply
February 14, 2010 9:38:56 PM

Aloid said:
Very nice list props man. One thing though where is the Antec Cp-850 :(  or is the list only standard form factor?

Edit: Sorry never mind man I found it guess I probibaly should have looked at the Big list first



Not at all I was waiting for someone to notice so I could make that point. The CP-850 is a great PSU but does not have the 12V amps to be compared to most 850W PSUs. It's more like a strong 750W.

And now you see why we sort by amps not watts. :sol: 
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a b ) Power supply
February 15, 2010 5:41:53 AM

Niklas_13 said:
Maybe this link will help http://www.eggxpert.com/forums/thread/323050.aspx


Thank you Niklas, the Eggxpert list is out of date and most of the more knowledgeable people agree there are serious mistakes in it. We have several good references we use however, and I'll share them all:


http://forums.extremeoverclocking.com/showthread.php?t=...
http://www.ocforums.com/showthread.php?t=589708
http://www.80plus.org/manu/psu/psu_join.aspx
http://www.jonnyguru.com/modules.php?name=NDArticles&op...
http://forums.guru3d.com/showthread.php?t=205763
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February 15, 2010 7:04:49 PM

Proximon said:
Thank you Niklas, the Eggxpert list is out of date and most of the more knowledgeable people agree there are serious mistakes in it. We have several good references we use however, and I'll share them all:


http://forums.extremeoverclocking.com/showthread.php?t=...
http://www.ocforums.com/showthread.php?t=589708
http://www.80plus.org/manu/psu/psu_join.aspx
http://www.jonnyguru.com/modules.php?name=NDArticles&op...
http://forums.guru3d.com/showthread.php?t=205763


Yeah i seen the egg was a bit out dated, It does show some good PSU i guess you just need to know what to look for

Anyways thanks for the links ( more good info never hurts ) its a + to learn and help the ones with less knowledge then you

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a b ) Power supply
February 16, 2010 11:10:30 PM

Still coming along.
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a b ) Power supply
February 24, 2010 6:23:45 AM

Best answer selected by Proximon.
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