IBM PS/2 N51SX/N51SLC BIOS Versions
BIOS Model F8h
N51SX: BIOS Submodel 99h
N51SLC: BIOS Submodel 5Dh

27C010 x1 EPROM

N51SX 'U19': 95F3744 - 03/07/1992, Revision 4
N51SX 'U19': 49G2752 - 06/18/1992


N51SLC 'U23': 35G4645 - 04/15/1992, Revision 1