Hi folks, FC5_64 I encountered following 2 problems; 1) On BIOS setting ACPI 2.0 support [Enabled] ACPI APIC support [Enabled] Warning at starting booting Powernow-k8 : mp system not supported by PSB BIOS structure 2) On BIOS setting ACPI 2.0 support [Disabled] ACPI APIC support [Disabled] Warning at starting booting Booting the kernel MP-BIOS bug 8254 time out connected to IO-APIC However PC still booted. Please advise what are they? How to fix this problem? TIA B.R. SL