144 pin SO SIMM connector at the computer |
Pin
|
Normal
|
ECC
|
Description |
1 |
VSS
|
VSS
|
Ground
|
2 |
VSS
|
VSS
|
Ground
|
3 |
DQ0
|
DQ0
|
Data 0 |
4 |
DQ32
|
DQ32
|
Data 32
|
5 |
DQ1
|
DQ1
|
Data 1 |
6 |
DQ33
|
DQ33
|
Data 33
|
7 |
DQ2
|
DQ2
|
Data 2 |
8 |
DQ34
|
DQ34
|
Data 34
|
9 |
DQ3
|
DQ3
|
Data 3 |
10
|
DQ35
|
DQ35
|
Data 35
|
11
|
VCC
|
VCC
|
+5 VDC
|
12
|
VCC
|
VCC
|
+5 VDC
|
13
|
DQ4
|
DQ4
|
Data 4 |
14
|
DQ36
|
DQ36
|
Data 36
|
15
|
DQ5
|
DQ5
|
Data 5 |
16
|
DQ37
|
DQ37
|
Data 37
|
17
|
DQ6
|
DQ6
|
Data 6 |
18
|
DQ38
|
DQ38
|
Data 38
|
19
|
DQ7
|
DQ7
|
Data 7 |
20
|
DQ39
|
DQ39
|
Data 39
|
21
|
VSS
|
VSS
|
Ground
|
22
|
VSS
|
VSS
|
Ground
|
23
|
/CAS0
|
/CAS0
|
Column Address Strobe 0 |
24
|
/CAS4
|
/CAS4
|
Column Address Strobe 4 |
25
|
/CAS1
|
/CAS1
|
Column Address Strobe 1 |
26
|
/CAS5
|
/CAS5
|
Column Address Strobe 5 |
27
|
VCC
|
VCC
|
+5 VDC
|
28
|
VCC
|
VCC
|
+5 VDC
|
29
|
A0
|
A0
|
Address 0 |
30
|
A3
|
A3
|
Address 3 |
31
|
A1
|
A1
|
Address 1 |
32
|
A4
|
A4
|
Address 4 |
33
|
A2
|
A2
|
Address 2 |
34
|
A5
|
A5
|
Address 5 |
35
|
VSS
|
VSS
|
Ground
|
36
|
VSS
|
VSS
|
Ground
|
37
|
DQ8
|
DQ8
|
Data 8 |
38
|
DQ40
|
DQ40
|
Data 40
|
39
|
DQ9
|
DQ9
|
Data 9 |
40
|
DQ41
|
DQ41
|
Data 41
|
41
|
DQ10
|
DQ10
|
Data 10
|
42
|
DQ42
|
DQ42
|
Data 42
|
43
|
DQ11
|
DQ11
|
Data 11
|
44
|
DQ43
|
DQ43
|
Data 43
|
45
|
VCC
|
VCC
|
+5 VDC
|
46
|
VCC
|
VCC
|
+5 VDC
|
47
|
DQ12
|
DQ12
|
Data 12
|
48
|
DQ44
|
DQ44
|
Data 44
|
49
|
DQ13
|
DQ13
|
Data 13
|
50
|
DQ45
|
DQ45
|
Data 45
|
51
|
DQ14
|
DQ14
|
Data 14
|
52
|
DQ46
|
DQ46
|
Data 46
|
53
|
DQ15
|
DQ15
|
Data 15
|
54
|
DQ47
|
DQ47
|
Data 47
|
55
|
VSS
|
VSS
|
Ground
|
56
|
VSS
|
VSS
|
Ground
|
57
|
n/c
|
CB0
|
|
58
|
n/c
|
CB4
|
|
59
|
n/c
|
CB1
|
|
60
|
n/c
|
CB5
|
|
61
|
DU
|
DU
|
Don't use
|
62
|
DU
|
DU
|
Don't use
|
63
|
VCC
|
VCC
|
+5 VDC
|
64
|
VCC
|
VCC
|
+5 VDC
|
65
|
DU
|
DU
|
Don't use
|
66
|
DU
|
DU
|
Don't use
|
67
|
/WE
|
/WE
|
Read/Write
|
68
|
n/c
|
n/c
|
Not connected
|
69
|
/RAS0
|
/RAS0
|
Row Address Strobe 0 |
70
|
n/c
|
n/c
|
Not connected
|
71
|
/RAS1
|
/RAS1
|
Row Address Strobe 1 |
72
|
n/c
|
n/c
|
Not connected
|
73
|
/OE
|
/OE
|
|
74
|
n/c
|
n/c
|
Not connected
|
75
|
VSS
|
VSS
|
Ground
|
76
|
VSS
|
VSS
|
Ground
|
77
|
n/c
|
CB2
|
|
78
|
n/c
|
CB6
|
|
79
|
n/c
|
CB3
|
|
80
|
n/c
|
CB7
|
|
81
|
VCC
|
VCC
|
+5 VDC
|
82
|
VCC
|
VCC
|
+5 VDC
|
83
|
DQ16
|
DQ16
|
Data 16
|
84
|
DQ48
|
DQ48
|
Data 48
|
85
|
DQ17
|
DQ17
|
Data 17
|
86
|
DQ49
|
DQ49
|
Data 49
|
87
|
DQ18
|
DQ18
|
Data 18
|
88
|
DQ50
|
DQ50
|
Data 50
|
89
|
DQ19
|
DQ19
|
Data 19
|
90
|
DQ51
|
DQ51
|
Data 51
|
91
|
VSS
|
VSS
|
Ground
|
92
|
VSS
|
VSS
|
Ground
|
93
|
DQ20
|
DQ20
|
Data 20
|
94
|
DQ52
|
DQ52
|
Data 52
|
95
|
DQ21
|
DQ21
|
Data 21
|
96
|
DQ53
|
DQ53
|
Data 53
|
97
|
DQ22
|
DQ22
|
Data 22
|
98
|
DQ54
|
DQ54
|
Data 54
|
99
|
DQ23
|
DQ23
|
Data 23
|
100
|
DQ55
|
DQ55
|
Data 55
|
101
|
VCC
|
VCC
|
+5 VDC
|
102
|
VCC
|
VCC
|
+5 VDC
|
103
|
A6
|
A6
|
Address 6 |
104
|
A7
|
A7
|
Address 7 |
105
|
A8
|
A8
|
Address 8 |
106
|
A11
|
A11
|
Address 11
|
107
|
VSS
|
VSS
|
Ground
|
108
|
VSS
|
VSS
|
Ground
|
109
|
A9
|
A9
|
Address 9 |
110
|
A12
|
A12
|
Address 12
|
111
|
A10
|
A10
|
Address 10
|
112
|
A13
|
A13
|
Address 13
|
113
|
VCC
|
VCC
|
+5 VDC
|
114
|
VCC
|
VCC
|
+5 VDC
|
115
|
/CAS2
|
/CAS2
|
Column Address Strobe 2 |
116
|
/CAS6
|
/CAS6
|
Column Address Strobe 6 |
117
|
/CAS3
|
/CAS3
|
Column Address Strobe 3 |
118
|
/CAS7
|
/CAS7
|
Column Address Strobe 7 |
119
|
VSS
|
VSS
|
Ground
|
120
|
/VSS
|
/VSS
|
Ground
|
121
|
DQ24
|
DQ24
|
Data 24
|
122
|
DQ56
|
DQ56
|
Data 56
|
123
|
DQ25
|
DQ25
|
Data 25
|
124
|
DQ57
|
DQ57
|
Data 57
|
125
|
DQ26
|
DQ26
|
Data 26
|
126
|
DQ58
|
DQ58
|
Data 58
|
127
|
DQ27
|
DQ27
|
Data 27
|
128
|
DQ59
|
DQ59
|
Data 59
|
129
|
VCC
|
VCC
|
+5 VDC
|
130
|
VCC
|
VCC
|
+5 VDC
|
131
|
DQ28
|
DQ28
|
Data 28
|
132
|
DQ60
|
DQ60
|
Data 60
|
133
|
DQ29
|
DQ29
|
Data 29
|
134
|
DQ61
|
DQ61
|
Data 61
|
135
|
DQ30
|
DQ30
|
Data 30
|
136
|
DQ62
|
DQ62
|
Data 62
|
137
|
DQ31
|
DQ31
|
Data 31
|
138
|
DQ63
|
DQ63
|
Data 63
|
139
|
VSS
|
VSS
|
Ground
|
140
|
VSS
|
VSS
|
Ground
|
141
|
SDA
|
SDA
|
|
142
|
SCL
|
SCL
|
|
143
|
VCC
|
VCC
|
+5 VDC
|
144
|
VCC
|
VCC
|
+5 VDC
|
| |