How is your Geil Memory module, what is the highest fsb can you achieve in 1:1 ratio? mine i can get is work as 2.5-4-4-7 at 275Mhz under 2.8v, boot to windows successfully with 275*9=2475Mhz, i have not done any detailed testing yet, only use prime95 to run the blend testing, the machine can keep running 1-3 hours before errors. i try to change to 280Mhz, it can not even display the agp screen and i have to reset the bios. i check the online Geil pc4400 it is running at 3-4-4-8 at 275Mhz with the same chips, but if i change to 3-4-4-8 timing, it is also not stable & even worse. 1-2 hour it will fail.i think the reason is that the abit board k8vpro can only support 2.8v mem voltage so far. i am not sure if abit will release newer bios to support higher voltage for memory(the Geil's working voltage 2.6v-3.1v). now the sandra test result for 2.5-4-4-7 275Mhz is 3700+MB/s and 3-4-4-8 3670MB/s both with 84% efficiency. if it can work stably with 275*9, i will use it rather than push the cpu to 2500Mhz+ with a multiplier @ 10 so that i can utilize the Geil High quality memory module(as i find for my cg stepping athlon64, if speed is faster than 2500Mhz, the whole system will be very hard to be cool down so the cpu itself is a bottleneck for further OC instead of the memory sub system).
do you have any idea and suggestion on that? and thank you for the first post to show me the right way to get a athlon64 cpu board and memory although now i have not tuned it to the optimal status.
Keep in touch, it seems only 2 of us in the forum are using athlon64 and interested in system peformance tuning.