Hello and Welcome to Bleepingcomputer.
We would be able to assist you better if you could please specify whether your drives are SATA or E-IDE/PATA.
Also, any time a device such as a hard drive is installed, you have to enter your BIOS utility at boot up and have the BIOS recognize the drive is installed in the system, before attempting to access it with-in Windows.
The directions for entering your BIOS utility should be displayed in the POST screen at boot up. It could be DELETE or F1 or F2, watch the POST screen for the correct key to press.
Hope this helps you.
Edited by MrBruce1959, 03 June 2010 - 10:35 AM.