The ONLY way to oc it, is to do it thru windoze. Youll need to find a few things out about the innards, and apply them to the software, and it isnt stable and such, and thats IF the software has the correct setting for your hardware, and thats only after you enter the correct info.
Not a great choice. No bios ocing of the HPs Ive seen. I was looking more towards your model for mobo support for cpus
According to this, youre limited to 89 watt cpushttp://h10025.www1.hp.com/ewfrf/wc/document?docname=c01077676&lc=en&dlc=en&cc=us&product=3548643&lang=en
That means your close to max for upgrades. If you really really want to try to oc your rig, and squeeeze maybe another 2-400 Mhz out of your cpu, try using clockgen