You're looking for a socket 749, not sure if you would know this but didn't want you buying the wrong kind.
I'm not up to date anymore with this type of thing but these are 2-3year old processors and you might find it difficult to find a replacement. Also these types of cpu's might quite often be soldered directly to the main board, making it difficult to replace without damaging the main board.
Hope that helped a little... it probably didn't :(
This might help http://www.google.co.uk/search?q=socket+479+site%3Ahttp%3A%2F%2Fforums.overclockers.co.uk%2F&hl=en&tbo=1&biw=1222&bih=683&num=10&lr=&ft=i&cr=&safe=off
You're looking for a socket 749, not sure if you would know this but didn't want you buying the wrong kind.
I'm not up to date anymore with this type of thing but these are 2-3year old processors and you might find it difficult to find a replacement. Also these types of cpu's might quite often be soldered directly to the main board, making it difficult to replace without damaging the main board.
Hope that helped a little... it probably didn't :(