ocaholic.ch posted a review on the Corsair HX850W PSU
A quote from the article:
>> Corsair HX850W Power Supply Review
With the HX850W - this time with a blue writing - Corsair renews the high qualitative HX-series. Therefore the Power supply which delivers 850W Watts shines with a very high efficiency near 90 percent, a single-rail power design and highly durable solid state capacitors.
>> Corsair HX850W Power Supply Review