Once again you CAN NOT overclock the BIOS or CMOS...so theres a wrong answer there
Raising your PCI Bus to 100 will guarantee frying a HD and components.
All that info about HD spin speeds, and clock speed is all wrong man.
Like I said, fire him and give me the job. I'll give you correct info.
THERE IS NO CPU HARD DRIVE RATIO
So get rid of that thought right away
EDIT: Give me the number to this guys place and I'll set him straight