Sorry for English.I live in Armenia.You can upgrade F75A notebook CPU but you may have some problems.Firstly you must check via CPU-Z utility which cheepset inside there.if its a intel HM70 nor HM76 you will have 99% 30 minute shutdown effect with INTEl Core I(3,5,7) CPU.I have a F75A-TY172H with Pentium 2020m which me presented 3 month ago from Germany and found about that issue and stoped upgrade CPU.I purchased trough EBAY-USA 4gh DDR3-1600 RAM and it will installed after cuple days.