286 SDRAM Gigabyte Motherboard build in Soundcard Althon XP 1.1GHZ TNT2 Video card Primary Master -- 10GB Harddisk Primary Slave -- CDRW Secondary Master --20GB Harddisk Secondary Slave -- DVD ROM Here is the problem: When I start computer, It wont detect my CDRW ( Primary Slave). It actually work before. So far I had tested: 1. unlug IDE Cable , power on Cdrw on Outcome Run prefect 2.unlug power, IDE Cable On Outcome Run Prefect 3.Change /Update BIOS Outcome someting happen wont detect CDRW 4.Auto detect on Primary Slave ( power on and IDE cable in) Outcome sometimes it work! if lucky, now doesnt work anymore after POST, it show "" Pri Master HDD ERROR RUN SETUP Press F1 o Resume Press F2 o Run Setup "" note: Last time it happen before, I changed IDE cable (New one), first doesnt work, so change the cable with secondary ,and then change it back. It work great, not until pass few days. Can someone tell me what wrong with my comupter???