Motherboard replacement

This board may fit, but you'll need a new windows coa if your operating system is original: http://www.amazon.com/ZOTAC-Socket-GeForce-Motherboard-GF6100-F-E/dp/B004I6DA5Y/ref=sr_1_5?s=electronics&ie=UTF8&qid=1362214219&sr=1-5&keywords=ddr2+amd+motherboard. You can also look for an oem board on ebay; ddr2 boards have been out of production for awhile.