I am not sure about this or what the difference is, but my BP6 system is using two 7200RPM Western Digital drives on the HPT366 controller ide3 port with hde20.5GB and hdf 15.5GB, without any problems. I had WD drives in my other systems, and never thought there would be a problem using these drives on an SMP machine. I am still running Mandrake 7.0 linux, and am going to wait to see what happens befor I try upgrading to 7.1 or later mandrake distrobution
