Quote Originally Posted by KTE View Post
Which BIOS/MB are you talking about here? This isn't how it works on mine (K9A2). Plus those values only work if you set the same or lower CPU multi than stock and leave NB multi to below 9x or it downclocks everything to adjust NB speed to around 2GHz.
I guess this is how mobo makers implement multipliers. Actually final multiplier that you see in BIOS setup, AOD ..... is calculated using CpuFid and CpuDid (NbFid and NbDid). AMD BKDG explains some math how to calculate COF (calculated operating frequency). In short:

CPU Speed = 100 MHz * (CpuFid + 16) / (2 ^ CpuDid) or
200 Mhz * (CpuFid + 16) / [2*(2 ^ CpuDid)]

NB Speed = 200 MHz * (NbFid + 4) / (2 ^ NbDid)

^ - power functions: 2 ^ 0 = 1, 2 ^ 1 = 2, 2 ^ 2 = 4, 2 ^ 3 = 8 .....
200 MHz should be default reference clock
When you increase CpuDid and NbDid , final multiplier is lower 2,4,8,16 times ...

Please try this

http://www.xtremesystems.org/forums/...4&postcount=29