From the CPU-Z its definately not just the graphs setting, go to device manager, click computer, it should say ACPI uniprocessor, click that and pick update driver and change it to the ACPI Multiprocessor driver, if its not an ACPI system driver your probably hosed and you'll have to reinstall windows as you can't change the type of hardware abstraction layer without a new install, other than to go from single to multiprocessor. LCB9E to my knowledge hasnt been proven to be a BAD stepping either, btw, I believe most newer build date opterons and X2s are this revision. CCBBE 0610 and 0617 in particular are well known good steppings, but probably we'll still see a few more good ones come up before they're all gone.