PORTIBM PC Portable (uses same BIOS as XT) 2315 - QUAD EMS+ - "QEMS_BOARD1" - ??? SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 05FBh"QUAD",PORTIBM PC Portable (uses same BIOS as XT) 2316h,PORTIBM PC Portable (uses same BIOS as XT) 2717h