Technical Support macbook pro a1278

[user24495]

this macbook is very slow response.. i try to replaced the hdd and try to install os but it didnt work it cannot install os.. i try to program the bios still the same.. can someone help what to do next?

 

[Hosein Asadolahi]

this macbook is very slow response.. i try to replaced the hdd and try to install os but it didnt work it cannot install os.. i try to program the bios still the same.. can someone help what to do next?

what is your means exactly "but it didnt work it cannot install os " ? which version you want to install ? did you get error ??