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PSU for 3x470 and 2500k - Page 2

post #11 of 14
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Quote:
Originally Posted by pursuinginsanity View Post
Just like to point out that a 4.5ghz Sandy will use -less- power than the system on Guru3d (an i7 965 @ 3.75ghz). Sandy CPUs use quite a bit less power, plus Sandy mobos lack a northbridge.

They also point out they're running a water setup and have cold cathodes, etc.
NB use a bit of power then, and their cooling system is using up more than what my system will as well.

Based on what you said there's really no reason for me to go above 850W. That should be even more true if the Seasonic actually can deliver a bit more than the listed 850W.

Well, buying a bigger PSU could make my build a bit more future proof. But unless my memory fails me I recall that using a bigger PSU than needed is bad since they usually have worse efficiency, thus costing a bit more money? Or was it something else? If not, why not just go big always?
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Soon
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post #12 of 14
Seasonic X850 or Corsair AX850... beast.

I ran an i7 930 and 470 SLI about 6 months ago on an X-650 while folding all 3 for a few days and it never even hiccuped.
    
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cm novatouch w/ pbt caps. evga 1200 p2 lian li pc-9f nixeus revel 
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5960x @ 4.4ghz (1.19v) evga x99 micro2 (2) evga gtx 980 ti hybrid 32gb hyperx 2666mhz 
Hard DriveCoolingOSMonitor
samsung 950 pro 512gb NVMe M.2 ssd ek everything win 10 xl2430t / u2515h (x2) / u2913wm 
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cm novatouch w/ pbt caps. evga 1200 p2 lian li pc-9f nixeus revel 
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steelseries qck heavy gustard U12/X12 -> H10/Lyr presonus 22vsl > mxl770 (mic) 
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post #13 of 14
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Ultra mega
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post #14 of 14
Well, definitely don't get the Corsair HX1000.

To help you decide between the Sapphire and the NZXT mentioned above:
The Sapphire is the same unit as this one: http://www.jonnyguru.com/modules.php...Story&reid=138
And the NZXT is the same unit as this one: http://www.jonnyguru.com/modules.php...Story&reid=191
To summarize: the Sapphire has slightly worse voltage regulation, much better ripple suppression, and is a little bit less efficient.
Personally I'd pick the Sapphire but it's up to you in the end.

Edit: as has been said earlier though, you'd be fine on a good 850W unit... the Antec HCP-850 for example is available on that website, has 6 PCIe connectors and would work great. There is also the Sapphire PurePSU 950W, same platform as its 1050W counterpart, costing a bit less, still more than enough power. And there's also the Corsair HX850.
Edited by Shub - 3/4/11 at 8:16am
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