Hows this PSU- 600W Raidmax

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oregon

Active Member
Yes, it does look like a good deal. Here's the link. I'll probably be running two optical drives, a two hard drives, an Intel Quad core, and perhaps an 8800 or something similar.

Will this do the job? And what does Modular mean... and is it modular?

thanks
 
It's probably made by a bad manufacturer of power supply's, doesn't have a sticker indicating the product which means is poor end and probably under 60% efficiency rate
 
Okay... thanks. And the two power supplies the other guy linked, why would the corsair be better? The OCZ has higher Wattage(?).
 
Higher wattage doesn't mean better, but rather the amps on the @12v rails, either one of those will do more than enough up to power to a 8800gtx
 
oregon said:
So what sort of ampage on the 12v rail is good? And what's the deal with multiple 12V rails?
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More amps on the 12v rail the better. Usually with a quality 500watt powersupply there's over 35 amps on the 12v rail (on one or spread out across multiple). And the dual (tri or quad etc) rails is to create more stability, as the power hungry components of your PC will draw power across separate rails. But this is also partially a marketing gimmick.
 
Multiple rails do help to promote stability, but they have a flaw as well. The efficiency of 2 or more +12v rails is poor, 70% or lower at times, while a single +12v rail has closer to an 100% efficiency, at least generally. So when dealing with multiple rails you can't simple add them up, most of the time 30% of the current, or more in extreme cases, is lost.
 
Will this do the job?
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Most likely, but not something I'd want to rely on for that sort of system - there's better around even at that price.
And what does Modular mean...
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Modular means you can remove the power cables you're not using
and is it modular?
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No, do you want something that's modular?
chupacabra said:
It's probably made by a bad manufacturer of power supply's, doesn't have a sticker indicating the product which means is poor end and probably under 60% efficiency rate
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I don't think the efficiency is quite that low, but I believe these are built by Topower - not exactly great.
oregon said:
Okay... thanks. And the two power supplies the other guy linked, why would the corsair be better? The OCZ has higher Wattage(?).
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The Corsair is the better unit. Don't just rely on the wattage, the Corsair is a significantly higher quality unit.
oregon said:
So what sort of ampage on the 12v rail is good?
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For an 8800GTX, 30A minimum. Take a look at http://www.computerforum.com/90110-power-recommendations-video-card.html

hermeslyre said:
Multiple rails do help to promote stability, but they have a flaw as well. The efficiency of 2 or more +12v rails is poor, 70% or lower at times, while a single +12v rail has closer to an 100% efficiency, at least generally. So when dealing with multiple rails you can't simple add them up, most of the time 30% of the current, or more in extreme cases, is lost.
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I know what you mean, but it isn't really efficiency, which is thought of as the ratio of power used/power drawn from the wall. Suffice to say you can not add the amperages individual rails together to get a total +12V amperage. Usually a total amperage will be specified by the manufacturer (often on the label). If it's specified as a total wattage, divide by 12 to get the total amperage. There are potential rail distribution issues as well, but this is less of an issue.

My complete list of recommendations is located at http://www.computerforum.com/90117-ceewi1s-psu-recommendations.html. Personally, I'd grab the Corsair VX550W or HX520W It's only $10-$20 more than that Raidmax and much better quality (and capable of putting out a lot more usable power). The HX520 costs a little more but is modular.
 
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