I'm only seeing Core2Duo CPUs there, and 266 FSB ones at that. On OEMs that can mean a locked PLL chip, and a 65W CPU limit. I couldn't find that board at userbenchmark.com. to see what others are actually running on it. Maybe with an HP model of the computer it could be found. But even then sometimes Dell would use a 65W and 95W motherboard in the same system depending on how it was ordered. Unless I saw some evidence of a CPU over 266fsb, or over 65W I wouldn't bother with it.