Be Quiet! Dark Power Pro 10 850W BN603 PSU Review

Testing results (Regulation & Ripple)

While not necessarily much better than that of the FSP-based 650W version, the electrical performance of the Be Quiet! Dark Power Pro 10 850W power supply is excellent. The unit displayed a very tight voltage regulation of 1.2% on the 12V line, while the regulation of the minor lines is slightly inferior at about 2%. Ripple suppression is outstanding, with the power supply maintaining a maximum ripple on the 12V line of less than 22mV while under maximum stress.