I was overclocking my CPU using the clockgen, and the PCI bus is making my sound card not work when I go over 2.56 GHz.

How Can I lock The PCI bus so I can just overclock the CPU and FBS?

*fsb

Being a Compaq with a limited BIOS you probably can not, you need a real PC not a Branded One...sorry

"How Can I lock The PCI bus so I can just overclock the CPU and FBS?"

Simply put, you can't!

And once the PCI bus goes beyond the safe max of 37.5MHz, all bets are off. It's not just the sound that you have to worry about either. The video (PCI & AGP), HDDs, & optical drives all run on the PCI bus...if you increase the bus too high, you can run into all sorts of problems (data corruption, creating "coasters" when burning CDs/DVDs, distorted display).

If you have an Intel CPU, here's the safe FSB limits:

400FSB CPU @ 100MHz = 112.5MHz max

533FSB CPU @ 133MHz = 150MHz max

800FSB CPU @ 200MHz = 225MHz max

You can always find out who makes your motherboard and see if you have a bios update for that type of motherboard. That bios update from that motherboards website could reflash it to a retail bios or it could ruin it. it's risky and I wouldn't try it unles A) you contact your namebrand tech support or the motherboard that makes that motherboard and see if it will work or B) this computer is an old pc and you really have nothing to lose.

AMD Athlon 64 X2 4400+ OC 2.7ghz
2GB Dual Channel DDR 3200
Nvidia 7800GT
SATA II 2x 200gig 7200rpm 16mb cache RAID-0
Gigabyte Nforce 4 SLI

jessejames had your answer.