I have recently taken up overclocking my Phenom 9550 CPU (again, more on that later). Everything is working fine, the only problem I seem to have is that my FSB: DRAM ratio seems to be fixed. I can set it from 1:2 to anything else I want, it will still be locked at 1:2. (a.k.a. I can set it to 1:1.66 in BIOS, but that same BIOS will then still tell me my memory frequency is 900Mhz, while my FSB is 225. Memory should be 750MHz) I have checked in BIOS and CPU-Z. I vaguely remember once getting an error in BIOS, during a previous overclocking attemp a few months ago, and ever since that ratio appears to be locked. I have tried resetting the BIOS to failsafe defaults, but that didn't help. Will a CMOS reset fix this problem? And if not, what will?
MSI K9A2 CF-F with BIOS version 1.C (1.12)
AMD Phenom 9550 @ 2475MHz (stock 2200)
4gb-kit Aeneon DDR2-800 @ 900MHz.