Can an AM3 be put on a motherboard which is made for an AM2? That may be my next step. I don't need ultrafast performance on this machine here, because I use it to pay bills and do facebook and here. I built this system brand new 6 years ago, and it's lasted the longest of any system I've ever made. I only have 2 GB of mismatched dual ram, but it's still relatively fast, and faster than 7 was when I had that installed. What surprises me is how fast my second system is, it's much faster than this one, 3 GB of totally mismatched DDR2 ramsticks, and the CPU is only a 4200+, where I have a 4400+ in this one. But the score is still much higher in that machine than in this one.
But the differences are, this machine has been upgraded from Windows 7, while that machine was a fresh install of 8. It's actually a much better motherboard than this one, it's an Asus NodusN made for HP, so the BIOS is stripepd to nothing, you can't modify it at all, except for boot order. On this one, I can overclock to 7% which is what I am doing now, and that system is STILL faster.
I have a core duo on a motherboard I can't use, and I'm intending to stick that chip on one of two Intel systems I have, one with a Celeron, one with a Pentium D. The Celeron system is in a great box, but the Pentium D system is in a hacked up old Dell Workstation case.
This system here, is an an old MSI M-Box case, it used to have a socket 741 Athlon board in it, but that board failed, so I stuck this M2N in instead. I used to buy all MSI stuff, but I've never had a motherboard I bought from them last longer than 2 years, they all fry quickly.