168 pin DIMM connector at the motherboard |
Front Side (left side 1-42, right side 43-84)
Back Side (left side 85-126, right side 127-168) Front, Left
Pin
|
Non-Parity?
|
Parity?
|
72 ECC?
|
80 ECC?
|
Description |
1 |
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
2 |
DQ0
|
DQ0
|
DQ0
|
DQ0
|
Data 0 |
3 |
DQ1
|
DQ1
|
DQ1
|
DQ1
|
Data 1 |
4 |
DQ2
|
DQ2
|
DQ2
|
DQ2
|
Data 2 |
5 |
DQ3
|
DQ3
|
DQ3
|
DQ3
|
Data 3 |
6 |
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
7 |
DQ4
|
DQ4
|
DQ4
|
DQ4
|
Data 4 |
8 |
DQ5
|
DQ5
|
DQ5
|
DQ5
|
Data 5 |
9 |
DQ6
|
DQ6
|
DQ6
|
DQ6
|
Data 6 |
10
|
DQ7
|
DQ7
|
DQ7
|
DQ7
|
Data 7 |
11
|
DQ8
|
DQ8
|
DQ8
|
DQ8
|
Data 8 |
12
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
13
|
DQ9
|
DQ9
|
DQ9
|
DQ9
|
Data 9 |
14
|
DQ10
|
DQ10
|
DQ10
|
DQ10
|
Data 10
|
15
|
DQ11
|
DQ11
|
DQ11
|
DQ11
|
Data 11
|
16
|
DQ12
|
DQ12
|
DQ12
|
DQ12
|
Data 12
|
17
|
DQ13
|
DQ13
|
DQ13
|
DQ13
|
Data 13
|
18
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
19
|
DQ14
|
DQ14
|
DQ14
|
DQ14
|
Data 14
|
20
|
DQ15
|
DQ15
|
DQ15
|
DQ15
|
Data 15
|
21
|
n/c
|
CB0
|
CB0
|
CB0
|
Parity/Check Bit Input/Output 0 |
22
|
n/c
|
CB1
|
CB1
|
CB1
|
Parity/Check Bit Input/Output 1 |
23
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
24
|
n/c
|
n/c
|
n/c
|
CB8
|
Parity/Check Bit Input/Output 8 |
25
|
n/c
|
n/c
|
n/c
|
CB9
|
Parity/Check Bit Input/Output 9 |
26
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
27
|
/WE0
|
/WE0
|
/WE0
|
/WE0
|
Read/Write Input
|
28
|
/CAS0
|
/CAS0
|
/CAS0
|
/CAS0
|
Column Address Strobe 0 |
29
|
/CAS1
|
/CAS1
|
/CAS1
|
/CAS1
|
Column Address Strobe 1 |
30
|
/RAS0
|
/RAS0
|
/RAS0
|
/RAS0
|
Row Address Strobe 0 |
31
|
/OE0
|
/OE0
|
/OE0
|
/OE0
|
Output Enable
|
32
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
33
|
A0
|
A0
|
A0
|
A0
|
Address 0 |
34
|
A2
|
A2
|
A2
|
A2
|
Address 2 |
35
|
A4
|
A4
|
A4
|
A4
|
Address 4 |
36
|
A6
|
A6
|
A6
|
A6
|
Address 6 |
37
|
A8
|
A8
|
A8
|
A8
|
Address 8 |
38
|
A10
|
A10
|
A10
|
A10
|
Address 10
|
39
|
A12
|
A12
|
A12
|
A12
|
Address 12
|
40
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
41
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
42
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
Front, Right
Pin
|
Non-Parity?
|
Parity?
|
72 ECC?
|
80 ECC?
|
Description |
43
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
44
|
/OE2
|
/OE2
|
/OE2
|
/OE2
|
|
45
|
/RAS2
|
/RAS2
|
/RAS2
|
/RAS2
|
Row Address Strobe 2 |
46
|
/CAS2
|
/CAS2
|
/CAS2
|
/CAS2
|
Column Address Strobe 2 |
47
|
/CAS3
|
/CAS3
|
/CAS3
|
/CAS3
|
Column Address Strobe 3 |
48
|
/WE2
|
/WE2
|
/WE2
|
/WE2
|
Read/Write Input
|
49
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
50
|
n/c
|
n/c
|
n/c
|
CB10
|
Parity/Check Bit Input/Output 10
|
51
|
n/c
|
n/c
|
n/c
|
CB11
|
Parity/Check Bit Input/Output 11
|
52
|
n/c
|
CB2
|
CB2
|
CB2
|
Parity/Check Bit Input/Output 2 |
53
|
n/c
|
CB3
|
CB3
|
CB3
|
Parity/Check Bit Input/Output 3 |
54
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
55
|
DQ16
|
DQ16
|
DQ16
|
DQ16
|
Data 16
|
56
|
DQ17
|
DQ17
|
DQ17
|
DQ17
|
Data 17
|
57
|
DQ18
|
DQ18
|
DQ18
|
DQ18
|
Data 18
|
58
|
DQ19
|
DQ19
|
DQ19
|
DQ19
|
Data 19
|
59
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
60
|
DQ20
|
DQ20
|
DQ20
|
DQ20
|
Data 20
|
61
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
62
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
63
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
64
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
65
|
DQ21
|
DQ21
|
DQ21
|
DQ21
|
Data 21
|
66
|
DQ22
|
DQ22
|
DQ22
|
DQ22
|
Data 22
|
67
|
DQ23
|
DQ23
|
DQ23
|
DQ23
|
Data 23
|
68
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
69
|
DQ24
|
DQ24
|
DQ24
|
DQ24
|
Data 24
|
70
|
DQ25
|
DQ25
|
DQ25
|
DQ25
|
Data 25
|
71
|
DQ26
|
DQ26
|
DQ26
|
DQ26
|
Data 26
|
72
|
DQ27
|
DQ27
|
DQ27
|
DQ27
|
Data 27
|
73
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
74
|
DQ28
|
DQ28
|
DQ28
|
DQ28
|
Data 28
|
75
|
DQ29
|
DQ29
|
DQ29
|
DQ29
|
Data 29
|
76
|
DQ30
|
DQ30
|
DQ30
|
DQ30
|
Data 30
|
77
|
DQ31
|
DQ31
|
DQ31
|
DQ31
|
Data 31
|
78
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
79
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
80
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
81
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
82
|
SDA
|
SDA
|
SDA
|
SDA
|
Serial Data
|
83
|
SCL
|
SCL
|
SCL
|
SCL
|
Serial Clock
|
84
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
Back, Left
Pin
|
Non-Parity?
|
Parity?
|
72 ECC?
|
80 ECC?
|
Description |
85
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
86
|
DQ32
|
DQ32
|
DQ32
|
DQ32
|
Data 32
|
87
|
DQ33
|
DQ33
|
DQ33
|
DQ33
|
Data 33
|
88
|
DQ34
|
DQ34
|
DQ34
|
DQ34
|
Data 34
|
89
|
DQ35
|
DQ35
|
DQ35
|
DQ35
|
Data 35
|
90
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
91
|
DQ36
|
DQ36
|
DQ36
|
DQ36
|
Data 36
|
92
|
DQ37
|
DQ37
|
DQ37
|
DQ37
|
Data 37
|
93
|
DQ38
|
DQ38
|
DQ38
|
DQ38
|
Data 38
|
94
|
DQ39
|
DQ39
|
DQ39
|
DQ39
|
Data 39
|
95
|
DQ40
|
DQ40
|
DQ40
|
DQ40
|
Data 40
|
96
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
97
|
DQ41
|
DQ41
|
DQ41
|
DQ41
|
Data 41
|
98
|
DQ42
|
DQ42
|
DQ42
|
DQ42
|
Data 42
|
99
|
DQ43
|
DQ43
|
DQ43
|
DQ43
|
Data 43
|
100
|
DQ44
|
DQ44
|
DQ44
|
DQ44
|
Data 44
|
101
|
DQ45
|
DQ45
|
DQ45
|
DQ45
|
Data 45
|
102
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
103
|
DQ46
|
DQ46
|
DQ46
|
DQ46
|
Data 46
|
104
|
DQ47
|
DQ47
|
DQ47
|
DQ47
|
Data 47
|
105
|
n/c
|
CB4
|
CB4
|
CB4
|
Parity/Check Bit Input/Output 4 |
106
|
n/c
|
CB5
|
CB5
|
CB5
|
Parity/Check Bit Input/Output 5 |
107
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
108
|
n/c
|
n/c
|
n/c
|
CB12
|
Parity/Check Bit Input/Output 12
|
109
|
n/c
|
n/c
|
n/c
|
CB13
|
Parity/Check Bit Input/Output 13
|
110
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
111
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
112
|
/CAS4
|
/CAS4
|
/CAS4
|
/CAS4
|
Column Address Strobe 4 |
113
|
/CAS5
|
/CAS5
|
/CAS5
|
/CAS5
|
Column Address Strobe 5 |
114
|
/RAS1
|
/RAS1
|
/RAS1
|
/RAS1
|
Row Address Strobe 1 |
115
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
116
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
117
|
A1
|
A1
|
A1
|
A1
|
Address 1 |
118
|
A3
|
A3
|
A3
|
A3
|
Address 3 |
119
|
A5
|
A5
|
A5
|
A5
|
Address 5 |
120
|
A7
|
A7
|
A7
|
A7
|
Address 7 |
121
|
A9
|
A9
|
A9
|
A9
|
Address 9 |
122
|
A11
|
A11
|
A11
|
A11
|
Address 11
|
123
|
A13
|
A13
|
A13
|
A13
|
Address 13
|
124
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
125
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
126
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
Back, Right
Pin
|
Non-Parity?
|
Parity?
|
72 ECC?
|
80 ECC?
|
Description |
127
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
128
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
129
|
/RAS3
|
/RAS3
|
/RAS3
|
/RAS3
|
Column Address Strobe 3 |
130
|
/CAS6
|
/CAS6
|
/CAS6
|
/CAS6
|
Column Address Strobe 6 |
131
|
/CAS7
|
/CAS7
|
/CAS7
|
/CAS7
|
Column Address Strobe 7 |
132
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
133
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
134
|
n/c
|
n/c
|
n/c
|
CB14
|
Parity/Check Bit Input/Output 14
|
135
|
n/c
|
n/c
|
n/c
|
CB15
|
Parity/Check Bit Input/Output 15
|
136
|
n/c
|
CB6
|
CB6
|
CB6
|
Parity/Check Bit Input/Output 6 |
137
|
n/c
|
CB7
|
CB7
|
CB7
|
Parity/Check Bit Input/Output 7 |
138
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
139
|
DQ48
|
DQ48
|
DQ48
|
DQ48
|
Data 48
|
140
|
DQ49
|
DQ49
|
DQ49
|
DQ49
|
Data 49
|
141
|
DQ50
|
DQ50
|
DQ50
|
DQ50
|
Data 50
|
142
|
DQ51
|
DQ51
|
DQ51
|
DQ51
|
Data 51
|
143
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
144
|
DQ52
|
DQ52
|
DQ52
|
DQ52
|
Data 52
|
145
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
146
|
DU
|
DU
|
DU
|
DU
|
Don't Use
|
147
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
148
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
149
|
DQ53
|
DQ53
|
DQ53
|
DQ53
|
Data 53
|
150
|
DQ54
|
DQ54
|
DQ54
|
DQ54
|
Data 54
|
151
|
DQ55
|
DQ55
|
DQ55
|
DQ55
|
Data 55
|
152
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
153
|
DQ56
|
DQ56
|
DQ56
|
DQ56
|
Data 56
|
154
|
DQ57
|
DQ57
|
DQ57
|
DQ57
|
Data 57
|
155
|
DQ58
|
DQ58
|
DQ58
|
DQ58
|
Data 58
|
156
|
DQ59
|
DQ59
|
DQ59
|
DQ59
|
Data 59
|
157
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
158
|
DQ60
|
DQ60
|
DQ60
|
DQ60
|
Data 60
|
159
|
DQ61
|
DQ61
|
DQ61
|
DQ61
|
Data 61
|
160
|
DQ62
|
DQ62
|
DQ62
|
DQ62
|
Data 62
|
161
|
DQ63
|
DQ63
|
DQ63
|
DQ63
|
Data 63
|
162
|
VSS
|
VSS
|
VSS
|
VSS
|
Ground
|
163
|
CK3
|
CK3
|
CK3
|
CK3
|
|
164
|
n/c
|
n/c
|
n/c
|
n/c
|
Not connected
|
165
|
SA0
|
SA0
|
SA0
|
SA0
|
Serial Address 0 |
166
|
SA1
|
SA1
|
SA1
|
SA1
|
Serial Address 1 |
167
|
SA2
|
SA2
|
SA2
|
SA2
|
Serial Address 2 |
168
|
VCC
|
VCC
|
VCC
|
VCC
|
+5 VDC or +3.3 VDC
|
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