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Is my PSU Powerful enough? - Page 2

post #11 of 15
Quote:
Originally Posted by cisf0rcalvin View Post
lol ouch on peak load it recommends 593W on my comp
lolz, after overclocking and at 100% TDP, the calculator recommends 627 Watts for mine. Meh, I pretty much tried to give it the "highest" possible draw for my system, so I should be okay.
    
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post #12 of 15
Are you guys playing with the "Capacitor Aging"? Sounds like it...

If you are read the footnote:

"Electrolytic capacitor aging. When used heavily or over an extended period of time (1+ years) a power supply will slowly lose some of its initial wattage capacity. We recommend you add 10-20% if you plan to keep your PSU for more than 1 year, or 20-30% for 24/7 usage and 1+ years."
uoıʇnloʌ3
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uoıʇnloʌ3
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post #13 of 15
Quote:
Originally Posted by Ellipsis View Post
This is always fun to play with...

Power Supply Calculator
thats possibly the most inaccurate way of picking a PSU lol
    
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post #14 of 15
get a corsair hx 520. $99 at buy.com. its modular too and way more than enough power for your set up. im thinkin of gettin one myself, but i dont know if i should go for the hx620.
http://www.buy.com/retail/product.as...53&dcaid=17653
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MIVE
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post #15 of 15
Quote:
Originally Posted by born2killU View Post
thats possibly the most inaccurate way of picking a PSU lol
That is a rather broad statement, especially since the author specifically states:

Quote:
The recommended total Power Supply Wattage gives you a general idea on what to look for BUT it is NOT a crucial factor in power supply selection! Total Amperage Available on the +12V Rail(s) is the most important, followed by the +5V amperage and then the +3.3V amperage.
It is a tool, like any other, to help get you in the right ballpark from a wattage standpoint. This version of the software is the "Lite" version. The "Pro" version is more in depth, covering amps per rail...among other things.

Of course there are other things to consider. I didn't say that this tool was the end all, be all way of choosing a PSU.

Amperage on each rail is of the utmost importance. Stability of each rail under load should also be considered. (I like jonnyGURU's Reviews for his research in this area.)

Some other important things to look for would be active power factor correction (PFC), the units overall efficiency and component quality.

The most inaccurate way to choose a PSU is to buy a cheap unit with a high wattage rating without taking into consideration any of the above.

Simply put, the best way to choose a PSU is to do your homework.
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