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.9 C6 E* P2 S) @7 y! `; [
You know, I mean, you should let the BIOS to recognize the newly installed HDD.' c, B, U( x: z( a N7 j
PS: against your description, you mayy MEMORY may meet difficulty. unplug them and reinstall after proper cleaning.