07/02/2016
Scenario ::- After replacing Motherboard, hard disk is not detected but it detecting in bios n diagnostic page.. How will u find out problem n it's solution.
Solutions::-
1) Press F12 while booting up the system, You will get one page, below in the list you will get one option call "change boot setting ".
If in that system has windows 8, den choose " UEFI boot mode on"
If it has windows 7, den choose "legacy boot mode on"
2) after setting up boot mode setting, if hard disk is not booting up, again press F12, go to change boot mode setting, choose "legacy boot mode off"
3) if solution 1n 2 didn't work den do this.. Press F2 while booting up the system.
One page will open, select "sata operating "
In that choose "AHCI"