Hard drive and optical drive conflict

Users questions: My computer hung up the two hard drives, a 80G, and another piece of 20G's. Why should unplug the drive line to plug the hard disk, if you do not plug can only identify one piece, insert the CD-ROM drive can not be used in the past do not have to I do not know why the 20G hard disk Na Quxiu after this kind of turned into now, please master Advise, thank you!
Experts answer: for your hard drive maintenance changed the jumper cap position. The 80G hard drive jumper cap inserted maste, connect to the master data line position (end), another 20G hard drive slave jumper cap inserted on the data lines connected to the slave Position (middle), occupy the same IDE channel. Drive jumper cap inserted maste data lines connected to the master position (end), use another IDE channel. Ide in the bios to automatically detect the device, you can save. screen.width * 0.3 5)this.width=screen.width*0.40 *
  • This information provided by the users.Thanks!