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.0 W* ~$ s& @- o3 G; f: i: C% z6 o
You know, I mean, you should let the BIOS to recognize the newly installed HDD. 1 w: o4 P( f6 M- `; vPS: against your description, you mayy MEMORY may meet difficulty. unplug them and reinstall after proper cleaning.