re help scsi woes on mac iifx according to the official documentation failure to use the iifx terminator can not only affect scsi bus performance but can also damage the bus whether this is your problem or not i don t know i have had sporadic scsi problems with my iifx since i bought it i cannot connect more than three devices fourth one causes major problems first thing to do is to try to reformat your drive on someone elses system if you continue to get errors it is probably the drive if it formats fine then i would try to format it on your system with no externals if this fails then the scsi controller on your iifx needs repair replacement hope this helps david c salmon salmon unomaha edu
