DIMM=Dual Inline Memory Module
Pinout
168 PIN DIMM at the computer.
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 |
72 ECC? |
80 ECC? |
Description
|
1 |
VSS |
VSS |
VSS |
Ground
|
2 |
DQ0 |
DQ0 |
DQ0 |
Data 0
|
3 |
DQ1 |
DQ1 |
DQ1 |
Data 1
|
4 |
DQ2 |
DQ2 |
DQ2 |
Data 2
|
5 |
DQ3 |
DQ3 |
DQ3 |
Data 3
|
6 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
7 |
DQ4 |
DQ4 |
DQ4 |
Data 4
|
8 |
DQ5 |
DQ5 |
DQ5 |
Data 5
|
9 |
DQ6 |
DQ6 |
DQ6 |
Data 6
|
10 |
DQ7 |
DQ7 |
DQ7 |
Data 7
|
11 |
DQ8 |
DQ8 |
DQ8 |
Data 8
|
12 |
VSS |
VSS |
VSS |
Ground
|
13 |
DQ9 |
DQ9 |
DQ9 |
Data 9
|
14 |
DQ10 |
DQ10 |
DQ10 |
Data 10
|
15 |
DQ11 |
DQ11 |
DQ11 |
Data 11
|
16 |
DQ12 |
DQ12 |
DQ12 |
Data 12
|
17 |
DQ13 |
DQ13 |
DQ13 |
Data 13
|
18 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
19 |
DQ14 |
DQ14 |
DQ14 |
Data 14
|
20 |
DQ15 |
DQ15 |
DQ15 |
Data 15
|
21 |
n/c |
CB0 |
CB0 |
Parity/Check Bit Input/Output 0
|
22 |
n/c |
CB1 |
CB1 |
Parity/Check Bit Input/Output 01
|
23 |
VSS |
VSS |
VSS |
Ground
|
24 |
n/c |
n/c |
CB8 |
Parity/Check Bit Input/Output 8
|
25 |
n/c |
n/c |
CB9 |
Parity/Check Bit Input/Output 9
|
26 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
27 |
/WE |
/WE |
/WE |
Read/Write
|
28 |
DQMB0 |
DQMB0 |
DQMB0 |
Byte Mask signal 0
|
29 |
DQMB1 |
DQMB1 |
DQMB1 |
Byte Mask signal 1
|
30 |
/S0 |
/S0 |
/S0 |
Chip Select 0
|
31 |
DU |
DU |
DU |
Don't Use
|
32 |
VSS |
VSS |
VSS |
Ground
|
33 |
A0 |
A0 |
A0 |
Address 0
|
34 |
A2 |
A2 |
A2 |
Address 2
|
35 |
A4 |
A4 |
A4 |
Address 4
|
36 |
A6 |
A6 |
A6 |
Address 6
|
37 |
A8 |
A8 |
A8 |
Address 8
|
38 |
A10/AP |
A10/AP |
A10/AP |
Address 10
|
39 |
BA1 |
BA1 |
BA1 |
Bank Address 1
|
40 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
41 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
42 |
CK0 |
CK0 |
CK0 |
Clock signal 0
|
Front, Right
Pin |
Non-Parity |
72 ECC? |
80 ECC? |
Description
|
43 |
VSS |
VSS |
VSS |
Ground
|
44 |
DU |
DU |
DU |
Don't Use
|
45 |
/S2 |
/S2 |
/S2 |
Chip Select 2
|
46 |
DQMB2 |
DQMB2 |
DQMB2 |
Byte Mask signal 2
|
47 |
DQMB3 |
DQMB3 |
DQMB3 |
Byte Mask signal 3
|
48 |
DU |
DU |
DU |
Don't Use
|
49 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
50 |
n/c |
n/c |
CB10 |
Parity/Check Bit Input/Output 10
|
51 |
n/c |
n/c |
CB11 |
Parity/Check Bit Input/Output 11
|
52 |
n/c |
CB2 |
CB2 |
Parity/Check Bit Input/Output 2
|
53 |
n/c |
CB3 |
CB3 |
Parity/Check Bit Input/Output 3
|
54 |
VSS |
VSS |
VSS |
Ground
|
55 |
DQ16 |
DQ16 |
DQ16 |
Data 16
|
56 |
DQ17 |
DQ17 |
DQ17 |
Data 17
|
57 |
DQ18 |
DQ18 |
DQ18 |
Data 18
|
58 |
DQ19 |
DQ19 |
DQ19 |
Data 19
|
59 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
60 |
DQ20 |
DQ20 |
DQ20 |
Data 20
|
61 |
n/c |
n/c |
n/c |
Not connected
|
62 |
Vref,NC |
Vref,NC |
Vref,NC |
|
63 |
CKE1 |
CKE1 |
CKE1 |
Clock Enable Signal 1
|
64 |
VSS |
VSS |
VSS |
Ground
|
65 |
DQ21 |
DQ21 |
DQ21 |
Data 21
|
66 |
DQ22 |
DQ22 |
DQ22 |
Data 22
|
67 |
DQ23 |
DQ23 |
DQ23 |
Data 23
|
68 |
VSS |
VSS |
VSS |
Ground
|
69 |
DQ24 |
DQ24 |
DQ24 |
Data 24
|
70 |
DQ25 |
DQ25 |
DQ25 |
Data 25
|
71 |
DQ26 |
DQ26 |
DQ26 |
Data 26
|
72 |
DQ27 |
DQ27 |
DQ27 |
Data 27
|
73 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
74 |
DQ28 |
DQ28 |
DQ28 |
Data 28
|
75 |
DQ29 |
DQ29 |
DQ29 |
Data 29
|
76 |
DQ30 |
DQ30 |
DQ30 |
Data 30
|
77 |
DQ31 |
DQ31 |
DQ31 |
Data 31
|
78 |
VSS |
VSS |
VSS |
Ground
|
79 |
CK2 |
CK2 |
CK2 |
Clock signal 2
|
80 |
n/c |
n/c |
n/c |
Not connected
|
81 |
n/c |
n/c |
n/c |
Not connected
|
82 |
SDA |
SDA |
SDA |
Serial Data
|
83 |
SCL |
SCL |
SCL |
Serial Clock
|
84 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
Back, Left
Pin |
Non-Parity |
72 ECC? |
80 ECC? |
Description
|
85 |
VSS |
VSS |
VSS |
Ground
|
86 |
DQ32 |
DQ32 |
DQ32 |
Data 32
|
87 |
DQ33 |
DQ33 |
DQ33 |
Data 33
|
88 |
DQ34 |
DQ34 |
DQ34 |
Data 34
|
89 |
DQ35 |
DQ35 |
DQ35 |
Data 35
|
90 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
91 |
DQ36 |
DQ36 |
DQ36 |
Data 36
|
92 |
DQ37 |
DQ37 |
DQ37 |
Data 37
|
93 |
DQ38 |
DQ38 |
DQ38 |
Data 38
|
94 |
DQ39 |
DQ39 |
DQ39 |
Data 39
|
95 |
DQ40 |
DQ40 |
DQ40 |
Data 40
|
96 |
VSS |
VSS |
VSS |
Ground
|
97 |
DQ41 |
DQ41 |
DQ41 |
Data 41
|
98 |
DQ42 |
DQ42 |
DQ42 |
Data 42
|
99 |
DQ43 |
DQ43 |
DQ43 |
Data 43
|
100 |
DQ44 |
DQ44 |
DQ44 |
Data 44
|
101 |
DQ45 |
DQ45 |
DQ45 |
Data 45
|
102 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
103 |
DQ46 |
DQ46 |
DQ46 |
Data 46
|
104 |
DQ47 |
DQ47 |
DQ47 |
Data 47
|
105 |
n/c |
CB4 |
CB4 |
Parity/Check Bit Input/Output 4
|
106 |
n/c |
CB5 |
CB5 |
Parity/Check Bit Input/Output 5
|
107 |
VSS |
VSS |
VSS |
Ground
|
108 |
n/c |
n/c |
CB12 |
Parity/Check Bit Input/Output 12
|
109 |
n/c |
n/c |
CB13 |
Parity/Check Bit Input/Output 13
|
110 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
111 |
/CAS |
/CAS |
/CAS |
Column Address Strobe
|
112 |
DQMB4 |
DQMB4 |
DQMB4 |
Byte Mask signal 4
|
113 |
DQMB5 |
DQMB5 |
DQMB5 |
Byte Mask signal 5
|
114 |
/S1 |
/S1 |
/S1 |
Chip Select 1
|
115 |
/RAS |
/RAS |
/RAS |
Row Address Strobe
|
116 |
VSS |
VSS |
VSS |
Ground
|
117 |
A1 |
A1 |
A1 |
Address 1
|
118 |
A3 |
A3 |
A3 |
Address 3
|
119 |
A5 |
A5 |
A5 |
Address 5
|
120 |
A7 |
A7 |
A7 |
Address 7
|
121 |
A9 |
A9 |
A9 |
Address 9
|
122 |
BA0 |
BA0 |
BA0 |
Bank Address 0
|
123 |
A11 |
A11 |
A11 |
Address 11
|
124 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
125 |
CK1 |
CK1 |
CK1 |
Clock signal 1
|
126 |
A12 |
A12 |
A12 |
Address 12
|
Back, Right
Pin |
Non-Parity |
72 ECC? |
80 ECC? |
Description
|
127 |
VSS |
VSS |
VSS |
Ground
|
128 |
CKE0 |
CKE0 |
CKE0 |
Clock Enable Signal 0
|
129 |
/S3 |
/S3 |
/S3 |
Chip Select 3
|
130 |
DQMB6 |
DQMB6 |
DQMB6 |
Byte Mask signal 6
|
131 |
DQMB7 |
DQMB7 |
DQMB7 |
Byte Mask signal 7
|
132 |
A13 |
A13 |
A13 |
Address 13
|
133 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
134 |
n/c |
n/c |
CB14 |
Parity/Check Bit Input/Output 14
|
135 |
n/c |
n/c |
CB15 |
Parity/Check Bit Input/Output 15
|
136 |
n/c |
CB6 |
CB6 |
Parity/Check Bit Input/Output 6
|
137 |
n/c |
CB7 |
CB7 |
Parity/Check Bit Input/Output 7
|
138 |
VSS |
VSS |
VSS |
Ground
|
139 |
DQ48 |
DQ48 |
DQ48 |
Data 48
|
140 |
DQ49 |
DQ49 |
DQ49 |
Data 49
|
141 |
DQ50 |
DQ50 |
DQ50 |
Data 50
|
142 |
DQ51 |
DQ51 |
DQ51 |
Data 51
|
143 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
144 |
DQ52 |
DQ52 |
DQ52 |
Data 52
|
145 |
n/c |
n/c |
n/c |
Not connected
|
146 |
Vref,NC |
Vref,NC |
Vref,NC |
|
147 |
n/c |
n/c |
n/c |
Not connected
|
148 |
VSS |
VSS |
VSS |
Ground
|
149 |
DQ53 |
DQ53 |
DQ53 |
Data 53
|
150 |
DQ54 |
DQ54 |
DQ54 |
Data 54
|
151 |
DQ55 |
DQ55 |
DQ55 |
Data 55
|
152 |
VSS |
VSS |
VSS |
Ground
|
153 |
DQ56 |
DQ56 |
DQ56 |
Data 56
|
154 |
DQ57 |
DQ57 |
DQ57 |
Data 57
|
155 |
DQ58 |
DQ58 |
DQ58 |
Data 58
|
156 |
DQ59 |
DQ59 |
DQ59 |
Data 59
|
157 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
158 |
DQ60 |
DQ60 |
DQ60 |
Data 60
|
159 |
DQ61 |
DQ61 |
DQ61 |
Data 61
|
160 |
DQ62 |
DQ62 |
DQ62 |
Data 62
|
161 |
DQ63 |
DQ63 |
DQ63 |
Data 63
|
162 |
VSS |
VSS |
VSS |
Ground
|
163 |
CK3 |
CK3 |
CK3 |
Clock signal 3
|
164 |
n/c |
n/c |
n/c |
Not connected
|
165 |
SA0 |
SA0 |
SA0 |
Serial address 0
|
166 |
SA1 |
SA1 |
SA1 |
Serial address 1
|
167 |
SA2 |
SA2 |
SA2 |
Serial address 2
|
168 |
VDD |
VDD |
VDD |
+5 VDC or +3.3 VDC
|
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