MSR_GLCP_DOTPLL_BYPASS
dotpll_lo &= ~(MSR_GLCP_DOTPLL_BYPASS | MSR_GLCP_DOTPLL_HALFPIX);
dotpll_lo &= ~MSR_GLCP_DOTPLL_BYPASS;
dotpll &= ~MSR_GLCP_DOTPLL_BYPASS;