Appendix A. Connector Pin Assignments
Appendix A. Connector Pin Assignments
The following tables show the pin assignments for various system board connectors.
System Memory Connectors
1
85
84
168
Figure 2. System Memory (DIMM) Connector
Note: Each system memory connector is a 168-pin, gold-lead socket.
Table 39 (Page 1 of 3). 168-Pin Assignments for the System Memory Connector
Pin
Signal Name
I/O
Pin
Signal Name
I/O
1
Ground
NA
85
Ground
NA
2
MD0
I/O
86
MD32
I/O
3
MD1
I/O
87
MD33
I/O
4
MD2
I/O
88
MD34
I/O
5
MD3
I/O
89
MD35
I/O
6
VDD
I/O
90
VDD
NA
7
MD4
I/O
91
MD36
NA
8
MD5
I/O
92
MD37
I/O
9
MD6
I/O
93
MD38
I/O
10
MD7
I/O
94
MD39
I/O
11
MD8
I/O
95
MD40
I/O
12
GND
NA
96
Ground
NA
13
MD9
I/O
97
MD41
I/O
14
MD10
I/O
98
MD42
I/O
15
MD11
O
99
MD43
I/O
16
MD12
O
100
MD44
I/O
17
MD13
O
101
MD45
I/O
18
VDD
O
102
VDD
NA
19
MD14
O
103
MD46
I/O
20
No connect/CB0
I/O
104
MD47
I/O
21
No connect/CB1
I/O
105
No connect/CB4
I/O
22
PAR2
I/O
106
No connect/CB5
I/O
23
Ground
I/O
107
Ground
NA
24
No connect
NA
108
No connect
NA
25
No connect
NA
109
No connect
NA
26
VDD
O
110
VDD
NA
27
WE0
O
111
DU
NA
28
CAS0
O
112
CAS4
O
30
Copyright IBM Corp. 1996, 1997
