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post #81 of 1059
Is there actually any downsides to some extreme overkill besides raping your efficiency?
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post #82 of 1059
Yoshimanitsu - 214%

214%
350w, with a 750w PSU
so, 750/350 = 2.1428571428571428571428571428571 rounded to 2.14 x 100 = 214%
Edited by Yoshimanitsu - 10/9/10 at 2:36pm
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post #83 of 1059
In for sure,

1000W with 471 usage puts me at about 206% overkill and when the 470 arrives it will be at 222%, oddly enough.
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post #84 of 1059
HOWEVER, I don't feel the PSU watt generator is very accurate because your not taking in the overclocking of my graphics card really really hard. Maybe that just doesn't have an effect?
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post #85 of 1059
The PSU calculator isnt showing you how much wattage youre using, its showing you the minimum rating your PSU should be. Youre actually using LESS than what the calculator is showing you.

Quote:
Is there actually any downsides to some extreme overkill besides raping your efficiency?
No. Power supplies run quieter, cooler, more efficiently and last longer the less you draw from them. So running a 750 watt power supply for a 250 watt system could actually be considered ideal.
post #86 of 1059
OK, I have a dual psu system @ 1200watt (Antec Neo-link if you want to look it up), and my max psu came out to 586watts.

So, 204.7%

I want in this club!
Quote:
Originally Posted by goat View Post
Is there actually any downsides to some extreme overkill besides raping your efficiency?
It doesn't hurt your efficiency, it helps your efficiency. PSU's are generally more efficient at lower percentages of their max load. A common misconception is that the psu uses its rated wattage all the time. A psu only delivers the power the components in your system are drawing.

So if anything having the overkill is a beneficial thing, except on your wallet.
Edited by Mygaffer - 10/9/10 at 3:01pm
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SBD:
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post #87 of 1059
Quote:
Originally Posted by Mygaffer View Post
OK, I have a dual psu system @ 1200watt (Antec Neo-link if you want to look it up), and my max psu came out to 586watts.

So, 204.7%

I want in this club!


It doesn't hurt your efficiency, it helps your efficiency. PSU's are generally more efficient at lower percentages of their max load. A common misconception is that the psu uses its rated wattage all the time. A psu only delivers the power the components in your system are drawing.

So if anything having the overkill is a beneficial thing, except on your wallet.

Wrong. Power supplies are most efficient at 40-60% of their wattage, give or take a bit. This is because at low wattages the controller circuitry is running at full power even though the switchers are running a low duty cycle. At full load the electrical characteristics of the silicon become non-ideal, and so more power is wasted and efficiency drops again.

You want your idle usage to be around 20-30% of the power supply's rating, and peak usage to be at 75-85%.
post #88 of 1059
er uh any recommendations re: "CPU Utilization (TDP)", "System Load", and "Capacitor Aging" inputs? I've had this psu for about a year, computer is not on 24/7. Is my 780i FTW "Regular" or "High End"?

Because when I put in the recommended values and choose "High End", I'm actually cutting it pretty close (and am even somewhat underpowered)...which I did not expect.

I thought I would be a shoe-in, I'd thought that I always uh overcompensated with my psus.
Edited by seward - 10/9/10 at 3:13pm
post #89 of 1059
280W minimum usage.

I have a 700W PSU.

250% Overkill.
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post #90 of 1059
362w minimum

950w PSU...262% Overkill?
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X79
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First build ever
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