IBM PC 300GL - Manual (Page 46)

Appendix A. Connector pin assignments 39
54 GND N/A 138 GND N/A
55 MD16 I/O 139 MD48 I/O
56 MD17 I/O 140 MD49 I/O
57 MD18 I/O 141 MD50 I/O
58 MD19 I/O 142 MD51 I/O
59 VDD N/A 143 VDD N/A
60 MD20 I/O 144 MD52 I/O
61 CKE1 N/A 145 NC N/A
62 VREF N/A 146 VREF N/A
63 (CKE1)* N/A 147 NC N/A
64 GND N/A 148 GND N/A
65 MD21 I/O 149 MD53 I/O
66 MD22 I/O 150 MD54 I/O
67 MD23 I/O 151 MD55 I/O
68 GND N/A 152 GND N/A
69 MD24 I/O 153 MD56 I/O
70 MD25 I/O 154 MD57 I/O
71 MD26 I/O 155 MD58 I/O
72 MD27 I/O 156 MD59 I/O
73 VDD N/A 157 VDD N/A
74 MD28 I/O 158 MD60 I/O
75 MD29 I/O 159 MD61 I/O
76 MD30 I/O 160 MD62 I/O
77 MD31 I/O 161 MD63 I/O
78 GND N/A 162 GND N/A
79 CK2 O 163 CK3 O
80 NC N/A 164 NC N/A
81 NC O 165 SA0 O
82 SDA O 166 SA1 O
83 SCL O 167 SA0 O
84 VDD N/A 168 VDD N/A
Table 21. System memory connector pin input/output
Pin Signal name I/O Pin Signal name I/O