needed more storage. I installed a new hard drive in an older computer. original configuration was a serial ata wd1600aajs hard drive and a serial ata dvd writer on sata ports 0 and 1. I added a wd1600aajs serial hard drive to sat port 2 bios installed drivers but when I went to see the drive to format it . it only shows drive c and the dvd writer motherbosrd is a intel dp43tf adr os is win vista home.