press "Delete" when the system starts up to enter BIOS.(The mathod might be various depends on brand of your system, your user manual may help you) Then find a option such as "IDE Detection" or the like. & F* N N; q: n' [/ N6 hYou know, I mean, you should let the BIOS to recognize the newly installed HDD." |! u8 N' v/ o: c/ w8 G. V9 A
PS: against your description, you mayy MEMORY may meet difficulty. unplug them and reinstall after proper cleaning.