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Corsair HX1000W Power Supply Review
by Michael "SKYMTL" Hoenig     |     May 12, 2008

Output Characteristics


This power supply is quite a bit different for anything else we have seen here at Hardware Canucks since we started doing power supply reviews. Where most power supplies out there will have combined +12V ratings, the Corsair HX1000W completely bucks this trend and instead goes down a very interesting and unique path.

The outputs are laid out like two separate 500W power supplies where each +12V rail is completely separate from the other and paired up with either a +5V or +3.3V rail. This means there is no real “combined +12V rating” since in theory this layout could conceivably produce 480W on each +12V rail making this power supply capable of putting out 960W of +12V power. This represents an incredible 96% of this power supply’s total continuous output which should be more than enough for even the most hardcore enthusiast.

Overall, the output specifications of Corsair’s 1000W power supply are simply stunning and goes to show that a great deal care was put into the fact that it will be providing oodles of power in a very +12V-centric marketplace. It should be interesting to see what the interior of this thing looks like.


Fan Impressions


Fan used on the HX1000W is a 7-bladed Yate Loon D14BH-12 140mm ball bearing unit which is rated to produce 48.5dB while moving 140CFM of air at its maximum speed of 2800PRM. Since this is on a fan speed controller which is directly linked to the output of the power supply, as you increase the load so too will the fan speed.


At lower wattage all we way up to 500W loads, Corsair claims their power supply should stay quite quiet at around 24dBA. Naturally, as load increases so to does the heat put out by the interior components which means that the fan needs to spin faster to cope with the higher thermal loads. At 1000W of continuous output, the fan would be spinning very close to its rated maximum RPMs and also producing the max amount of noise Yate Loon specifies it being capable of.
 
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