I recently dug out my old desktop and decided to see if I could possibly put it to any kind of use and decided I would try to upgrade a few components. Its a Compaq Presario S4000V-P8656E with a Pentium 4 2.2 GHz processor. I checked out the motherboard and the HP model is a K2-GL6E which I guess is a ECS L4S5MG3 PCB 3.0. As for the processors that this motherboard will support, all I have found is that the maximum is a Pentium 4 3.06 GHz which is a Northwood. I guess my question is would this motherboard support a Prescott 2.8E that runs on a FSB of 533. Seems to me that it should since thats the max my motherboard can run but I definitely could be way off. Also, I got into the BIOS and everything is locked, probably to keep people such as myself from destroying their machines. Is there anyway to unlock it so I can just try playing with it? I'm pretty new to all this so any help/advice would be appreciated. Thanks