Based on the Intel® Q965 Express Chipset there are some Intel® Core™2 Duo processors that you can use on this chipset.
Check the following link:
Note that the Intel® Core™2 Duo Processor E7500 has a different lithography. Therefore, it will not fit on your motherboard socket. Also, related with the Intel® Core™2 Quad Processor Q6600 is not compatible with your chipset
To validate this information please access the following link: