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I have put a small SATA SSD along with a SATA-IDE bridge adaptor inside a Mac mini G4. Now it does not recognize the optical drive sharing the same Mac's IDE host any more. Obviously the SATA-IDE bridge is not configured to properly support Cable Select to set Device ID1 (slave). In the Mac mini the optical drive is set to device ID0 (master), usually. Having the SSD set to appear as device ID0 (master) as well causes the system to ignore the optical drive. On the SATA-IDE bridge adaptor I cut everything that could connect the device ID setting input to ground (pin 28 of the IDE pins as well as pin33 of the JM20330 bridge chip). The device still works and still appears as device ID0 (master). The machine boots lightning fast, but the optical drive remains unusable. At this point I am stuck. Might it be appropriate to set the optical drive to device ID1 (slave)? Could somebody share information on how to appropriately hack the Mac mini's interconnect board that plugs both drives into the mainboard? Information on setting the optical drive itself from Cable Select mode to a fixed ID1 (slave) would be welcome, also.