read the forum rules abbreviations are treated the same as the full words and will receive a warning
http://www.techsupportforum.com/rules.php
if the operating system is loaded check that you can see it listed in the bios,if not check the cable has not come loose
try a new cable
if you are trying to load an operating system on a sata drive you need to load a driver with f6 and set it up in the bios