I have the latest bios, and I'm running on it a T bred B 0249 with 2 Corsair XMS PC3500 256Mb sticks in dual channel mode. The CPU and NB have each their own WC circuit, the case is an AMK OCD-810 Full Tower modded (lots of fans), more details on my setup can be found in my 8RDA+ problems thread.
I made my second attempt at overclocking with the following settings :
CPU and Ram settings set to Expert to allow me playing with settings.
System Performances and CPU Interface : Optimal
Multiplier : 10X
FSB : 200Mhz
Memory Frequency : 100%
Ram timings : 11-3-3-2
FSB and AGP Spread Spectrum and the two other ram related settings are left to default values.
Vcore : 1.8V even if I believe that I don't need such a high voltage for that speed
V DDR : 2.77V
Here MBM and WPCUID screecshots :