PORTIBM PC Portable (uses same BIOS as XT) 0168-016F - 4th (Quaternary) EIDE Controller Range: 01F0-01F7 for primary controller, 0170-0177 for secondary controller SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 0170h-0177h,PORTIBM PC Portable (uses same BIOS as XT) 01E8h-01EFh,PORTIBM PC Portable (uses same BIOS as XT) 01F0h-01F7h