Post your results here. I just got my E0 today and my chips is limited to about 480 FSB. It is stable at 4.0ghz 8.5x471 at 1.36v but no matter what voltage it won't even bench much higher, maybe 4.1ghz . It might be my ram not playing nice with this quad 4GB 4x2gb kit but I'm not sure my board will do over 580 FSB with a dual core and on several web sites my board goes over 500 fsb with this chip. It appears to me my ram is the trouble and doesn't want to run stable past DDr2 950 or so. With a dual core it does DDR2 1100+ so I will get back to you on that. Post your results here 4.0 ghz is nothing to sneeze at but I always want more.