Hello everybody, Im using a 845 mobo, a cd RW and a HD.the priamary IDE is connected to HD and secondary IDE slot to CD RW. Now the problem the bios shows IDE primary master to HD and secondary IDE master to CD RW. when i connected the HD and CDRW to the optional middle pin in that flat ribbon type cable, the bios still shows both drives in master slots instead of showing them to secondary. similarly the jumper of HD is set to SLAVE but bios shows Master. Is this a problem.But drives works fine. How to rectify this. what is the IDE cables master/slave pins, the end pins or the mid ones. thanx for mere visit to this post.more thanks for replies .lot more thanks for answers.