Hello All, With an Abit motherboard I have 2 ATA sockets and 2 IDE sockets. My 2 hard drives are on the same cable master slave both on single ATA socket. CD rom and Zip drive on ide separate sockets both slaves. It works so I left well enough... Should I put Hd's on differant ATA sockets Set as master and slave? Will this increases transfer speeds on bus??... I understand the cd rom conflict and all is well with disabling via software. No conflict now. Thanks for your patience!!!!!!