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12V is 12V be it from a 4 pin or 8 pin connector.
FWIW the 8 pin power connector was originally designed for more efficient power delivery for dual CPU servers. It had nothing to do with overclocking. The design evolved over to mainstream desktop boards for that efficiency as well as reduced production costs.
I'd be more worried about two 17A rails.
If you plug any kind of power hungry video card into that system, it's going to fall flat on its face.
Everybody worries about WATTS yet never consider AMPS.
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I always care about amps, im not going in dual hd4890 or something "very hungry" :)
imo 2x 17A would be fine.
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Got another one :
This is Asus P7P55D LX
http://www.asus.com/product.aspx?P_I...84O&templete=2
http://www.asus.com/websites/Global/...8cwXXh_500.jpg
P55 (1156) mobo and it has only 4-pin pwr.
But maybe i'll take Corsair TX650 :) and won't change psu at least 4 yrs.
