Arctic Cooling Fusion 550RF Power Supply Review

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Arctic Cooling Fusion 550RF Power Supply Review

Postby Apoptosis » Fri Jun 19, 2009 5:21 am

Arctic Cooling Fusion 550RF Power Supply Review

The Arctic Cooling Fusion 550RF is manufactured by Seasonic for Arctic Cooling and it is internally identical to Corsair VX450W and Antec Earthwatts 500W power supplies. Read on to figure out how it can be rated 100W higher than the Corsair VX450W and to see how it does on an Intel Core i7 920 system!

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The Fusion 550RF is manufactured by Seasonic for Arctic Cooling and it is internally identical to Corsair VX450W and Antec Earthwatts 500W power supplies. The strange thing about these internally identical power supplies is that the Wattage power ratings are all different. Between the three companies a 100W rating difference is observed, which is pretty crazy no matter where you live or with whom your brand loyalty lies. After a little bit of research it appears that Arctic Cooling rated their power supply at 550W due to that being the peak power rating. This is not something we ever like to see as most other name brand companies don't rate their power supplies like this. The power supply label on the Fusion 550RF says that it can handle 550W loads for a maximum of one full second, so when shopping for power supplies this one is more in the range of a competitor's 450W-500W power supply.


Article Title: Arctic Cooling Fusion 550RF Power Supply Review
Article URL: http://legitreviews.com/article/995/1/
Pricing At Time of Print: $69.56 at NCIX


P.S. Hats off to Dan for his hard work and effort in this review!
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Re: Arctic Cooling Fusion 550RF Power Supply Review

Postby gwolfman » Fri Jun 19, 2009 8:57 am

Thanks for the review; I'll steer clear of this one.
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Re: Arctic Cooling Fusion 550RF Power Supply Review

Postby Deux » Fri Jun 19, 2009 3:24 pm

Overall the review was fairly well done. The one criticism I do have though is that you measured the load with a Kill-A-Watt. The issue is that the Kill A watt measures the AC power entering the power supply and not the DC power actually being used by the system. PSUs are rated for the number of watts they can deliver which is different than the numbers seen on the kill a watt device. In a situation where the power supply actually had to supply its entire rated output of 550W it would actually be drawing 687W assuming it was running at ~80% efficiency. About halfway down the page there is an example of calculating efficiency http://www.jonnyguru.com/modules.php?name=Testing_Methodology
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