Old mother boards had bios that would only recognise 33gb of any hard drive but drive manufacturers developed dynamic drive overlays that cut in before the bios and would rcognise full size. If the 80gb is fully recognised the 160gb will be as well.
It would also depend on the IDE channels on your board I had a look at the specs for the K7 board and it has 2 IDE sockets which means you can have 3 hard drives and one CD/DVD optical drive connected. If you have 2 optical drives connected you'll have to remove one.
If I also remember correctly set the hard drive as master and the optical drive as slave for better hard drive performance.
This thread is now locked and can not be replied to.