My motherboard is a Gigabyte GA-8I915PL-G with an Intel Pentium 4 630 3,0 GHz which doesn't run at it's default speed. It's currently at FSB 800, CPU Host 200 and CPU 3000 MHz; but sometimes it runs at FSB 533, CPU Host 133 and CPU 2025 MHz. Sometimes it's even at FSB 75 and CPU 1128 MHz.
When I configure the default settings in Easy Tune then my computer doesn't work. Sometimes I need to clear the CMOS so I can set the default settings in the BIOS, but that doesn't always help.
I've updated the BIOS, what else can I do to fix this problem?