I had the MSI K9A2 Plat.........one thing is that I had horrible experience when having the ht and nb at different multi's so keep both at the same multi. Only multis 8-12 worked for me with my 9950. I got mine up to 270 bus speed with a 9 multi on both ht and nb will give 2400+ and 3.6+ghz on the cpu.

but I would suggest setting the ht and nb at 10 multi and set bus speed at 210 reboot and go immediately into the bios set to 220 reboot and go immediately into the bios do it till you get to about 240 bus speed then drop both the ht and NB multi to 9 and go for 250. Mind you you dont need to add voltage to anything right now.......you can do all this will voltages on auto.

dont make to many changes in the bios at once as you will have to clear the cmos......not sure if they fixed that I was using the 1.5bios so thats what I had to deal with.

basically you will need voltages for ht and nb above 2450mhz and cpu voltage will need to start moving up at about 3400mhz with a bad chip if you get to 3500-3600 on stock voltages then you got a decent cpu