I want to upgrade the installed ram on my thinkpad T400 (2764 CTO), right now it has 4 Gb preinstalled in 2 sticks. On the lenovo's site says that my ram is: PC3-8500 DDR3-1066. But a friend just gave me a 4 gb stick with the next code: KVR1333D3S9/4GB (4Gb PC3-10600 CL9 204 Pin SODDIMM); and I want to know if it could suit on my T400.
If it is not compatible, where can I buy a 4 Gb stick at a good price?
Again, thanks for the help and excuse my basic questions!