NCR S26 - Manual (Page 90)

Hard Disk Drive Types
4-34 Using the BIOS Setup Utility
Type Cylinders Heads Sectors Per Track
79 1001 15 32
80 1024 16 63
81 1024 10 17
82 1024 11 17
83 1024 15 17
84 776 8 33
85 926 13 17
86 805 4 26
87 976 5 17
88 745 4 28
89 747 2 28
90 782 2 1Bh
91 985 13 32
92 816 15 32
93 968 5 17
94 903 8 46
95 966 5 34
96 535 10 50
97 715 10 50
98~100 (reserved)
Auto or User (User-defined)