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Honest opinion from a PSU expert please.

post #1 of 21
Thread Starter 
I want to crossfire 5850's. My current psu could probably handle it, yet not well. I would like a knowledgeable opinion on the PSUs I am going to present and good reasons why or why not to choose one of them. Modular is a must.

I don't wanna hear get corsair because they are good or get seasonic because they are seasonic exc. Please don't waste my time

first off is a 650w psu enough to be comfortable. yes no maybe?

my max price I am willing to pay is about $140

ok here it goes

Its seasonic, its sub $100
http://www.newegg.com/Product/Produc...82E16817151095

Higher watts, seasonic OEM
http://www.newegg.com/Product/Produc...82E16817371021

Mr corsair who is no longer Seasonic OEM, Now CWT but acording to Corsair George still the same excellent quality
http://www.newegg.com/Product/Produc...82E16817139012

Elite from Seasonic. Can get more W for less $ but.....
http://www.newegg.com/Product/Produc...82E16817151088

Same as other antec... seasonic oem... Higher watts
http://www.newegg.com/Product/Produc...82E16817371022

Another Seasonic OEM.. Higher W good price
http://www.newegg.com/Product/Produc...82E16817207003
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post #2 of 21
You'll be fine with a 650W.
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post #3 of 21
name brand power supply
one rail
as many amps as you can afford
has all the cables you need
modular if you want to keep your case neat
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post #4 of 21
Thread Starter 
Is there one that would be chosen out of the ones listed anyone?
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post #5 of 21
Quote:
Originally Posted by killeraxemannic View Post
Is there one that would be chosen out of the ones listed anyone?
Out of those the X-650 or the XFX 750W one is really good. TBH all of them are really good.
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post #6 of 21
Heh, every single one of those is made by SeaSonic (including the HX650; it wasn't affected by the changes, it's still a SeaSonic S12E).

Let's see,

Ranked by performance:

SeaSonic X650
XFX Black Edition 750W
Antec TruePower New 650W/750W
Corsair HX650 / SeaSonic M12II 620W
post #7 of 21
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post
Heh, every single one of those is made by SeaSonic (including the HX650; it wasn't affected by the changes, it's still a SeaSonic S12E).

Let's see,

Ranked by performance:

SeaSonic X650
XFX Black Edition 750W
Antec TruePower New 650W/750W
Corsair HX650 / SeaSonic M12II 620W
So I can take from that..... get the xfx because its a tad cheaper and 100 more W?
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post #8 of 21
You'll want to look at the 12v rails.

With each PSU, look at that label on the side with all those numbers. There should be one or more entries with "+12V". For ones with multiple rails, it should say "+12V1, +12V2", etc.

Also accompanying each number is an amperage, say, "12V1 @ 18A".

Simply add up all the amps available on all the +12V rails to get a good sense of how powerful each PSU is. That's the rail the CPU and GPU draws from (and therefore, the one most relevant to us).

Phaedrus' list reflects what I said up there

And everything on his list also is able to run your cards in CrossFire. I'd personally choose the TruePower since it's the cheapest of all of them that still gives enough extra power for OCing and still makes me feel safe about the leftover amount.
post #9 of 21
You can get a Huntkey X7 900W or Rocketfish RF-900WPS(the one which I have ordered from ebay)
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post #10 of 21
Quote:
Originally Posted by r31ncarnat3d View Post
You'll want to look at the 12v rails.

With each PSU, look at that label on the side with all those numbers. There should be one or more entries with "+12V". For ones with multiple rails, it should say "+12V1, +12V2", etc.

Also accompanying each number is an amperage, say, "12V1 @ 18A".

Simply add up all the amps available on all the +12V rails to get a good sense of how powerful each PSU is. That's the rail the CPU and GPU draws from (and therefore, the one most relevant to us).
No, no, no, NO. God no. Christ, have you read anything I've written?

Quote:
Phaedrus' list reflects what I said up there
It does not.
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