While the T9500 chip fits the socket it’s not compatible with your system. Your systems BIOS (EFI) does not have the support for this chip.
* [https://ark.intel.com/products/29760/Intel-Core-2-Duo-Processor-T7300-4M-Cache-2-00-GHz-800-MHz-FSB-|Intel Core2 Duo Processor T7300]
* [https://ark.intel.com/products/33918/Intel-Core-2-Duo-Processor-T9500-6M-Cache-2-60-GHz-800-MHz-FSB-|Intel Core2 Duo Processor T9500]