We can not use both Syquest SQ555 and a Seagate 80 MByte SCSI drive at the same Adaptec 1542 controller. Under dos all works fine but under Esix 3.2D we can not mount the second drive. We tried both possibilities i.e. both drives run well as first drive. Frieder Monninger SIG Computer GmbH fm at sigcomp.sub.org D 6333 Braunfels +49 6472 2096