No superpi stable with 300 mhz...i think its only cpu-z
My last 2x256 mb twinmos bh-5 did 294 mhz superpi 1m...and 288 mhz prime blend !!!!

@ knut
I use a Asus SK8V with Via K8T800 chipset....i could only go to almost 280 mhz...today my opteron from the usa arrived...newest is one cab1e 0619 cpmw 252er.
board was modded for single stage today...and yesterday i testet out all the voltages...from 0.8 volts to 1.75 volts with an fx-51 by the way. 0.8 volts run with 800 mhz....best i could done.

s.i.h. !!!
Today I cracked my own 3200+ newcastle record....more than 2.9 ghz with single stage and 1.71 volts only....with default vcore i could got 2.65 ghz...but with that 1.7 volts i had almost 0c so i think ln2 will be the key for 3 ghz