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post #11 of 13
For cheap i would go for Chieftec (if they have Delta electronics or HIGH POWER electronics) or Sirtec (HIGH POWER) .
Also there are some Hiper PSU-s that may be good but it depends on the luck.

A real 400W power supply should be able to deliver continuosly around 30 Ampers on the 12 Volts rail(s) which usually is enough for a "normal" system.
   
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(13 items)
 
CPUMotherboardGraphicsRAM
AMD FX 6300  Asus Sabertooth 990FX R 2.0 Sapphire 6950 unlocked Geil 
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WD Sony Corsair H60 Mepis Tetris 
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LG HD  Logitech generic Corsair CS650 Nexus Clodius White 
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AMD Athlon 5150 ASUS AM1M-A  IGD Crucial 2X2G 
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Seagate 640Gb junk SONY DVD-RW Stock OpenSuse/Ubuntu 
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post #12 of 13
Quote:
Originally Posted by ShadowOfDeath View Post
Is Powercool really that bad ?
Look at the numbers they provide. They claim a combined +5V and +3.3V rating of "199.2W". First off, that's the type of number I'd expect for a Pentium 3 era PSU, most modern PSUs can only provide 120-150W of +5V and +3.3V power. Second, they don't give a combined +12V rating, but claim that it has a 16A and an 18A rail. Probably they have a combined total of 30A maximum (incidentally, a number I'd expect from a 400W PSU), more likely 25A or lower. But let's give them the benefit of the doubt. That gives you 408W of +12V power. Add the +5V and +3.3V, and assume that the -12V is 6W and the +5VSB is 15W (reasonable numbers) and you get 628.2W. And they claim 750W--sure.

That's if you assume their numbers are correct. We've already established they're liars. I'm willing to be that the 80PLUS cert is fake and the badge is being used fraudulently. My guess is they're using a low-end Andyson unit rated for "450W" by Andyson, which would be a 350-400W unit from any other respectable OEM. Probably has mediocre build quality and terrible ripple to boot. I can guarantee you that it cannot provide 750W.



Don't try to get something for nothing. Purchase a quality power supply. You probably don't even need 750W, unless you're doing SLI GTX570s or something. Most dual-GPU setups can run on a quality 650W PSU, and ANY single GPU setup can run on a quality 550W. What's your budget?
post #13 of 13
It is a generic psu and you never know what the combine 12vs can do on it. Even it can provides 34a on 12v, which I doubt it can, it is 408w. So price is cheap and sounds 'big' but it is just a 400w unit. A psu isn't just to provide adequate power to your components but also an investment to protect components.
Edited by linskingdom - 4/24/11 at 8:21am
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