I have a 40 gb hard drive that basicly will only be detected as a slave......when i hook it up by itself as a master with the jumpers and cabels set right, it will not show up on the list of things in bios....however when jumpers are set as a slave and a nother hard drive is hooked with it as a master it will be detected...why is this.....I checked the cabels, power, connections, evrery thing i could think of.....so basicly its only detected as a slave...NOT a master why is this.
It could perhaps be that the jumper setting for master isn't registered properly (loose connection or whatever), is there a 'cable select' mode, and have you tried that?
could also be the cable is causing the problem. some cables have a segment missing on 1 of the wires of the cable designating 1 side of the missing segment the master & the other side the slave. was the drive connected to the middle connector or outside connector when the drive was jumpered as master?