Well, as I already said, it is, and was, 1.69GHz...
My Computer says:
"Intel(R)
Pentium(R) 4 CPU 2.26GHz
1.69 GHz, 512MB of Ram"
So did CPUid, so did every program.
My Motherboard, or BIOS doesn't support 2.26GHz, It supports to max of 2GHz.
Now I have no idea what to do.
As for the BIOS...