Top memory and now also a top price

I once paid even 220 EUR for the good pieces. Anyway: on my Asus P5B Deluxe (Rev 1.03g) they are stable with 1.9V in 5-5-5-12 and 430 MHz (860 MHz DDR), Write to Precharge Delay 10 with the same settings they run even with 460 MHz (DDR 920), but since my processor rises unfortunately.