10 years ago would be lga775, or 771, or maybe even a socket 479, no telling without some serious digging. If it's 771, you'd be in luck, you can hijack a Xeon 771 and convert it to use in lga775 mobo's, just bring a beefier cooler. If it's socket 479, old pentium, you are out of luck entirely, you won't find a reliable board for that, nobody would take the time to re-cap one.