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., S, u/ `3 _# c$ H1 L4 p# N$ y
You know, I mean, you should let the BIOS to recognize the newly installed HDD. E5 {5 m1 U, d1 d6 \6 mPS: against your description, you mayy MEMORY may meet difficulty. unplug them and reinstall after proper cleaning.