My motherboard is Intel 915GAV. where there are only one IDE channel. Now When I use my Hard Disk (Samsung 80GB, 72000 RPM) with this mother board its ok. But when I add any other harddisk or DVD/CD ROM with it as a slave, then it says "Pri Master hard Disk S.M.A.R.T. status BAD, Backup and Replace" during boot up and wait for "Press <F4>..." and after I press "F4" it takes much time to load OS(WinXP Sp2). And after loading if I check with Intel desktop Utilities there it pops up "ERR_SMART" or in details of Dard disk says "Status: Error ID=02". Now I think my hard disk is ok. Now please tell anyone how to solve this problem. If you need any more information please tell me. I will be waiting for your response. Thanks in advance.