[comp.sys.ibm.pc.hardware] Adaptec AHA-1542a dual SCSI / FDC Controller - FDC Section

dbl7201@ttardis.UUCP (David B Lightstone) (03/11/91)

I am experiencing a nusance problem which I do not know how to
trouble shoot.

Under DOS I can utilize the controller to read either low (DD) or
high (HD) floppy disks. What I can't do is either read a DD, 
remove it and replace it with a HD and read the HD (and converse).
I have to reboot DOS in order to change floppy disk densities.

Is this a controller problem, a floppy disk configuration problem,
or an known characteristic of the usage of the dual controler.

Any guidance would be approciated. Thanks 

Dave