Hello. So I have Asus K50IN laptop with Intel® Core™2 Duo Processor T6500 : 2.1 GHz, FSB 800Hz, 2M L2 Cache. Which is this: http://www.notebookcheck.net/Intel-Core-2-Duo-T6500-Notebook-Processor.34899.0.html I dont know if this is right but "CPUID CPU-Z" says: chipset: NVIDIA ID0A83 Southbridge: NVIDIA nForce 730i I am currently looking for a processor that I could upgrade to. Is it possible to upgrade my laptop to this: Intel® Core™2 Duo Processor T9900 : 3.06 GHz, FSB 1066Hz, 6M Cache Which is this: http://www.notebookcheck.net/Intel-Core-2-Duo-T9900-Notebook-Processor.23802.0.html I found this T9900 on ebay but is says: "for intel mobile 45 Chipset etc use ONLY" I also found different processors but they all say for intel mobile 45/55/65/75/76/77 etc. So do I need to look for processors that are compatible with NVIDIA ID0A83 ? or would the T9900 work as it is? Any suggestions or help on this would be nice. Thanks. I also uploaded my "cpu-z" screens just incase you need more info.