The issue with that is that you may end up with your new drive locked too. In some of the newer systems this is a feature built into the drive and usually you can't cart it over to another computer. I was able to cheat with my harddrive in my old lappy and plug it into an identical one and use software to retrieve the pass acquired from the people at the link belowhttp://www.pwcrack.com/harddisk.shtml
(link is too there guide and they also have a service that may be able to help you.) often times the pass is the same as the bios pass, but not always.
try the preset passes from the link herehttp://www.pwcrack.com/bios.shtml
hope it helps, if not the first link can get you to there service and they may be able to crack your pass for you.