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post #11 of 60
Quote:
Originally Posted by ZeVo View Post

Thanks for the explanation! I was eyeing the SeaSonic X Series, especially the 650W one. I could get the 550W for maybe $89, but if the 650W goes back to $99, I would think it would be better just to get the 650W?

At a $10 difference you might as well get the more powerful one, especially since it gives you enough power to SLI should you decide to SLI. I have the X750 even though I don't really need more than 550w with my current setup. The extra overhead helps keep it closer to the 50% load sweet spot when the system is under full load and also keeps it quieter.

Also, don't gloss over the Capstone just because it's a Rosewill. It's a fantastic unit that shares internals with the Kingwin Lazer Gold, NZXT Hale90, and Rosewill Lightning. If it's the cheapest, grab it. It's an incredibly well made and well performing unit.
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post #12 of 60

Well, that 50% load thing is a little bit misunderstood:

 

On PSU Efficiency

 

PSU "50% Load" Myth

 

It's more about the average load.  So this means that if someone is doing Folding or BOINCing 24/7, then they should get a PSU that's rated for about 100W or more above what they really need.

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post #13 of 60
Quote:
Originally Posted by TwoCables View Post

Well, that 50% load thing is a little bit misunderstood:

On PSU Efficiency

PSU "50% Load" Myth

It's more about the average load.  So this means that if someone is doing Folding or BOINCing 24/7, then they should get a PSU that's rated for about 100W or more above what they really need.

It's definitely misunderstood and I probably should have expounded more upon that and asked what the future plans for the computer are. I overclock and keep my computer under load more often than it idles, so I wanted a PSU that keeps me in that 40-60% sweet spot while under load. The ability to Crossfire was also another point for it for me. If I mainly browsed the internet with it and did word processing, I would have grabbed a 500-550w unit. Assuming OP overclocks and can put their computer under heavy stress and does so most of the time it's on, either a 550w or 650w unit is fine. If they do plan on SLI, I would grab the 650w unit. If they don't plan on SLI and don't put it under heavy load, 500-550w is the way to go.

I also liked the added benefit of a quieter computer. I know with the X series, the fan doesn't start to spin up until ~20% load. So while it may be less efficient when I do let it idle, it's also dead quiet since the fan isn't spinning or is barely spinning at all.

And you've now given me a few more bookmarks to point people toward. My favorite quote from them is probably "80+ does not make a PSU good." I can't tell you the number of times I've seen people recommend a PSU because it has an 80+ Bronze or better cert without even bothering to look at whether voltage is in spec, ripple is good, or if it uses good components.
Edited by nubbinator - 12/13/12 at 6:23pm
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post #14 of 60

lol I know, right!  Gold is better, but Platinum is the best!  So, only look at Gold or Platinum PSUs!  Oh, and make sure it's a Corsair or SeaSonic.

 

Rage.  :)

 

Here's the source where I copied those links from:

 

http://www.overclock.net/t/715889/psu-articles

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post #15 of 60
Thread Starter 
Thanks for the replies.

My bud just told me he is selling his SeaSonic M12II 620W for $60 used. Should I take this deal? Says nothing is wrong with it and everything is included. Would I be better taking the X Series 650W?
post #16 of 60
Quote:
Originally Posted by ZeVo View Post

Thanks for the replies.
My bud just told me he is selling his SeaSonic M12II 620W for $60 used. Should I take this deal? Says nothing is wrong with it and everything is included. Would I be better taking the X Series 650W?

 

I think it can depend on what he did with that PSU, what he powered, etc.  I mean, it could still be in like-new condition.  Although, $60 for a used 620W M12II is only $30 less than retail:

 

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151095

 

$89.99 shipped

 

Although, I'm not knowledgeable in this area.  Maybe $60 used is a great deal - I don't know.

 

The X-650 is certainly a much, much, much better PSU, but it's $135 after shipping.  Plus, I feel that it's very overkill on quality for air-cooled overclocking.

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post #17 of 60
Quote:
Originally Posted by ZeVo View Post

Thanks for the replies.
My bud just told me he is selling his SeaSonic M12II 620W for $60 used. Should I take this deal? Says nothing is wrong with it and everything is included. Would I be better taking the X Series 650W?

It's louder since it has a more aggressive fan profile on it, but the M12 II is a good unit. $60 seems a little high for used though, especially from a friend.
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post #18 of 60

Yeah, but for powering a system with only one 670, it should be very quiet.

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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #19 of 60
550W SeaSonic G Series would be a great choice
    
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post #20 of 60
Thread Starter 
He had the same system as I did expect he had a 7850. He had it for less than a month too. He never overclocked and didn't do anything intense. When I come over he rarely even turns on his computer or even plays games. He says he could do $50.

But I am 99.999% sure the X650 will go on sale for $99. It even went for that price in October. What should I do?
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