kimnguyen

Hi all I have a Lenovo G400 with CPU Intel Pentium 2020M , when replace it with Core i5 3210M , the laptop show the message "Unsupport CPU PCH " I try other CPU i5 3230M i7 3632QM but it's the same . Althought Lenovo G400 have some models with i5 CPU I know Lenovo have a whitelist WLAN Cad , and a whitelist with microcode CPU Anybody know how to unlock the BIOS and insert the microcode to make G400 support i5 i7 ? Thanks a lot