Skynet-Online.de has posted a review on the P5 420W S1.3 PSU in german

Today we quiet for you the new! P5 420W S 1,3 psu on the test status. It was extended mainly by connections for new hardware components such as Pci-x and 24 pin mainboard. By special treads at the VGA/HDD and Pci e, ensure connection quiet! a stabilized voltage supply. Further features like extremely quiet exhausts may not be missing naturally also. Which has to offer the P5 still everything, experience you in our test.

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