@Hyde have your problems with SATA HDD vanished. Now i am facing this issue (beeps and system freeze) again with my SATA seagate 200gb. Since the last post in this thread i had assumed the problem was resolved by new SATA cable but it hasn't.
This time i had bought a high quality SATA cable, but it hasn't worked, i even have a new MOBO now (nforce4) so i guess it really is a problem with
Seagate HDDs.
I don't quite know how they will even RMA it, as this problem i not easy to reproduce. What should i do ?