Assuming the latest BIOS installed, what is the fastest CPU that can be installed in the ECS P6BX-A+ board? My stepson has this board and (despite my suggestion of getting a new one) wants to squeeze the last bit of lifespan from it. I have checked the ECS site, emailed their various support sites and have yet to get an answer. Currently he is running a PII 450 w/384 MB RAM in it and XP runs like a 3-legged dog in it. Anyone with first hand knowledge or experience with this board? I thank you for your help.