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Motherboard
Pin    Name   Direction   Description

1     VREF    -?-         Power supply for reference

2     DQ0     -?-         Data input / output

3     VSS     -?-         Ground

4     DQ1     -?-         Data input / output

5     DQS0    -?-         Data strobe input / output

6     DQ2     -?-         Data input / output

7     VDD     -?-         Power supply (2,5V)

8     DQ3     -?-         Data input / output

9     NC      -?-         Not connected

10    NC      -?-         Not connected

11    VSS     -?-         Ground

12    DQ8     -?-         Data input / output

13    DQ9     -?-         Data input / output

14    DQS1    -?-         Data strobe input / output

15    VDD     -?-         Power supply (2,5V)

16    CK1     -?-         Clock input

17    CK1#    -?-         Clock input

18    VSS     -?-         Ground

19    DQ10    -?-         Data input / output

20    DQ11    -?-         Data input / output

21    CKE0    -?-         Clock enable input

22    VDD     -?-         Power supply (2,5V)

23    DQ16    -?-         Data input / output

24    DQ17    -?-         Data input / output

25    DQS2    -?-         Data strobe input / output
26   VSS    -?-   Ground

27   A9     -?-   Address input (multiplexed)

28   DQ18   -?-   Data input / output

29   A7     -?-   Address input (multiplexed)

30   VDD    -?-   Power supply (2,5V)

31   DQ19   -?-   Data input / output

32   A5     -?-   Address input (multiplexed)

33   DQ24   -?-   Data input / output

34   VSS    -?-   Ground

35   DQ25   -?-   Data input / output

36   DQS3   -?-   Data strobe input / output

37   A4     -?-   Address input (multiplexed)

38   VDD    -?-   Power supply (2,5V)

39   DQ26   -?-   Data input / output

40   DQ27   -?-   Data input / output

41   A2     -?-   Address input (multiplexed)

42   VSS    -?-   Ground

43   A1     -?-   Address input (multiplexed)

44   CB0    -?-   Not connected

45   CB1    -?-   Not connected

46   VDD    -?-   Power supply (2,5V)

47   DQS8   -?-   Data strobe input / output

48   A0     -?-   Address input (multiplexed)

49   CB2    -?-   Not connected

50   VSS    -?-   Ground

51   CB3    -?-   Not connected

52   BA1    -?-   Bank select address
53   DQ32   -?-   Data input / output

54   VDD    -?-   Power supply (2,5V)

55   DQ33   -?-   Data input / output

56   DQS4   -?-   Data strobe input / output

57   DQ34   -?-   Data input / output

58   VSS    -?-   Ground

59   BA0    -?-   Bank select address

60   DQ35   -?-   Data input / output

61   DQ40   -?-   Data input / output

62   VDD    -?-   Power supply (2,5V)

63   WE#    -?-   Write enable

64   DQ41   -?-   Data input / output

65   CAS#   -?-   Column address strobe

66   VSS    -?-   Ground

67   DQS5   -?-   Data strobe input / output

68   DQ42   -?-   Data input / output

69   DQ43   -?-   Data input / output

70   VDD    -?-   Power supply (2,5V)

71   NC     -?-   Not connected

72   DQ48   -?-   Data input / output

73   DQ49   -?-   Data input / output

74   VSS    -?-   Ground

75   CK2#   -?-   Clock input

76   CK2    -?-   Clock input

77   VDD    -?-   Power supply (2,5V)

78   DQS6   -?-   Data strobe input / output

79   DQ50   -?-   Data input / output
80    DQ51   -?-   Data input / output

81    VSS    -?-   Ground

82    NC     -?-   Not connected

83    DQ56   -?-   Data input / output

84    DQ57   -?-   Data input / output

85    VDD    -?-   Power supply (2,5V)

86    DQS7   -?-   Data strobe input / output

87    DQ58   -?-   Data input / output

88    DQ59   -?-   Data input / output

89    VSS    -?-   Ground

90    NC     -?-   Not connected

91    SDA    -?-   Serial data I/O

92    SCL    -?-   Serial clock

93    VSS    -?-   Ground

94    DQ4    -?-   Data input / output

95    DQ5    -?-   Data input / output

96    VDD    -?-   Power supply (2,5V)

97    DQS9   -?-   Data strobe input / output

98    DQ6    -?-   Data input / output

99    DQ7    -?-   Data input / output

100   VSS    -?-   Ground

101   NC     -?-   Not connected

102   NC     -?-   Not connected

103   NC     -?-   Not connected

104   VDD    -?-   Power supply (2,5V)

105   DQ12   -?-   Data input / output

106   DQ13   -?-   Data input / output
107   DQS10   -?-   Data strobe input / output

108   VDD     -?-   Power supply (2,5V)

109   DQ14    -?-   Data input / output

110   DQ15    -?-   Data input / output

111   CKE1    -?-   Clock enable input

112   VDD     -?-   Power supply (2,5V)

113   NC      -?-   Not connected

114   DQ20    -?-   Data input / output

115   A12     -?-   Address input (multiplexed)

116   VSS     -?-   Ground

117   DQ21    -?-   Data input / output

118   A11     -?-   Address input (multiplexed)

119   DQS11   -?-   Data strobe input / output

120   VDD     -?-   Power supply (2,5V)

121   DQ22    -?-   Data input / output

122   A8      -?-   Address input (multiplexed)

123   DQ23    -?    -Data input / output

124   VSS     -?-   Ground

125   A6      -?-   Address input (multiplexed)

126   DQ28    -?-   Data input / output

127   DQ29    -?-   Data input / output

128   VDD     -?-   Power supply (2,5V)

129   DQS12   -?-   Data strobe input / output

130   A3      -?-   Address input (multiplexed)

131   DQ30    -?-   Data input / output

132   VSS     -?-   Ground

133   DQ31    -?-   Data input / output
134   CB4     -?-   Not connected

135   CB5     -?-   Not connected

136   VDD     -?-   Power supply (2,5V)

137   CK0     -?-   Clock input

138   CK0#    -?-   Clock input

139   VSS     -?-   Ground

140   DQS17   -?-   Data strobe input / output

141   A10     -?-   Address input (multiplexed)

142   CB6     -?-   Not connected

143   VDD     -?-   Power supply (2,5V)

144   CB7     -?-   Not connected

145   VSS     -?-   Ground

146   DQ36    -?-   Data input / output

147   DQ37    -?-   Data input / output

148   VDD     -?-   Power supply (2,5V)

149   DQS13   -?-   Data strobe input / output

150   DQ38    -?-   Data input / output

151   DQ39    -?-   Data input / output

152   VSS     -?-   Ground

153   DQ44    -?-   Data input / output

154   RAS#    -?-   Row address strobe

155   DQ45    -?-   Data input / output

156   VDD     -?-   Power supply (2,5V)

157   S0#     -?-   Chip select input

158   S1#     -?-   Chip select input

159   DQS14   -?-   Data strobe input / output

160   VSS     -?-   Ground
161   DQ46     -?-   Data input / output

162   DQ47     -?-   Data input / output

163   NC       -?-   Not connected

164   VDD      -?-   Power supply (2,5V)

165   DQ52     -?-   Data input / output

166   DQ53     -?-   Data input / output

167   NC       -?-   Not connected

168   VDD      -?-   Power supply (2,5V)

169   DQS15    -?-   Data strobe input / output

170   DQ54     -?-   Data input / output

171   DQ55     -?-   Data input / output

172   VDD      -?-   Power supply (2,5V)

173   NC       -?-   Not connected

174   DQ60     -?-   Data input / output

175   DQ61     -?-   Data input / output

176   VSS      ?-    Ground

177   DQS16    ?-    Data strobe input / output

178   DQ62     ?-    Data input / output

179   DQ63     ?-    Data input / output

180   VDD      ?-    Power supply (2,5V)

181   SA0      ?-    Address in EEPROM

182   SA1      ?-    Address in EEPROM

183   SA2      ?-    Address in EEPROM

184   VDDSPD   ?-    Serial EEPROM power supply (2,3-3,6V)

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Ddr sdram dimm (184 pin, unbuffered) pinout

  • 1. Motherboard Pin Name Direction Description 1 VREF -?- Power supply for reference 2 DQ0 -?- Data input / output 3 VSS -?- Ground 4 DQ1 -?- Data input / output 5 DQS0 -?- Data strobe input / output 6 DQ2 -?- Data input / output 7 VDD -?- Power supply (2,5V) 8 DQ3 -?- Data input / output 9 NC -?- Not connected 10 NC -?- Not connected 11 VSS -?- Ground 12 DQ8 -?- Data input / output 13 DQ9 -?- Data input / output 14 DQS1 -?- Data strobe input / output 15 VDD -?- Power supply (2,5V) 16 CK1 -?- Clock input 17 CK1# -?- Clock input 18 VSS -?- Ground 19 DQ10 -?- Data input / output 20 DQ11 -?- Data input / output 21 CKE0 -?- Clock enable input 22 VDD -?- Power supply (2,5V) 23 DQ16 -?- Data input / output 24 DQ17 -?- Data input / output 25 DQS2 -?- Data strobe input / output
  • 2. 26 VSS -?- Ground 27 A9 -?- Address input (multiplexed) 28 DQ18 -?- Data input / output 29 A7 -?- Address input (multiplexed) 30 VDD -?- Power supply (2,5V) 31 DQ19 -?- Data input / output 32 A5 -?- Address input (multiplexed) 33 DQ24 -?- Data input / output 34 VSS -?- Ground 35 DQ25 -?- Data input / output 36 DQS3 -?- Data strobe input / output 37 A4 -?- Address input (multiplexed) 38 VDD -?- Power supply (2,5V) 39 DQ26 -?- Data input / output 40 DQ27 -?- Data input / output 41 A2 -?- Address input (multiplexed) 42 VSS -?- Ground 43 A1 -?- Address input (multiplexed) 44 CB0 -?- Not connected 45 CB1 -?- Not connected 46 VDD -?- Power supply (2,5V) 47 DQS8 -?- Data strobe input / output 48 A0 -?- Address input (multiplexed) 49 CB2 -?- Not connected 50 VSS -?- Ground 51 CB3 -?- Not connected 52 BA1 -?- Bank select address
  • 3. 53 DQ32 -?- Data input / output 54 VDD -?- Power supply (2,5V) 55 DQ33 -?- Data input / output 56 DQS4 -?- Data strobe input / output 57 DQ34 -?- Data input / output 58 VSS -?- Ground 59 BA0 -?- Bank select address 60 DQ35 -?- Data input / output 61 DQ40 -?- Data input / output 62 VDD -?- Power supply (2,5V) 63 WE# -?- Write enable 64 DQ41 -?- Data input / output 65 CAS# -?- Column address strobe 66 VSS -?- Ground 67 DQS5 -?- Data strobe input / output 68 DQ42 -?- Data input / output 69 DQ43 -?- Data input / output 70 VDD -?- Power supply (2,5V) 71 NC -?- Not connected 72 DQ48 -?- Data input / output 73 DQ49 -?- Data input / output 74 VSS -?- Ground 75 CK2# -?- Clock input 76 CK2 -?- Clock input 77 VDD -?- Power supply (2,5V) 78 DQS6 -?- Data strobe input / output 79 DQ50 -?- Data input / output
  • 4. 80 DQ51 -?- Data input / output 81 VSS -?- Ground 82 NC -?- Not connected 83 DQ56 -?- Data input / output 84 DQ57 -?- Data input / output 85 VDD -?- Power supply (2,5V) 86 DQS7 -?- Data strobe input / output 87 DQ58 -?- Data input / output 88 DQ59 -?- Data input / output 89 VSS -?- Ground 90 NC -?- Not connected 91 SDA -?- Serial data I/O 92 SCL -?- Serial clock 93 VSS -?- Ground 94 DQ4 -?- Data input / output 95 DQ5 -?- Data input / output 96 VDD -?- Power supply (2,5V) 97 DQS9 -?- Data strobe input / output 98 DQ6 -?- Data input / output 99 DQ7 -?- Data input / output 100 VSS -?- Ground 101 NC -?- Not connected 102 NC -?- Not connected 103 NC -?- Not connected 104 VDD -?- Power supply (2,5V) 105 DQ12 -?- Data input / output 106 DQ13 -?- Data input / output
  • 5. 107 DQS10 -?- Data strobe input / output 108 VDD -?- Power supply (2,5V) 109 DQ14 -?- Data input / output 110 DQ15 -?- Data input / output 111 CKE1 -?- Clock enable input 112 VDD -?- Power supply (2,5V) 113 NC -?- Not connected 114 DQ20 -?- Data input / output 115 A12 -?- Address input (multiplexed) 116 VSS -?- Ground 117 DQ21 -?- Data input / output 118 A11 -?- Address input (multiplexed) 119 DQS11 -?- Data strobe input / output 120 VDD -?- Power supply (2,5V) 121 DQ22 -?- Data input / output 122 A8 -?- Address input (multiplexed) 123 DQ23 -? -Data input / output 124 VSS -?- Ground 125 A6 -?- Address input (multiplexed) 126 DQ28 -?- Data input / output 127 DQ29 -?- Data input / output 128 VDD -?- Power supply (2,5V) 129 DQS12 -?- Data strobe input / output 130 A3 -?- Address input (multiplexed) 131 DQ30 -?- Data input / output 132 VSS -?- Ground 133 DQ31 -?- Data input / output
  • 6. 134 CB4 -?- Not connected 135 CB5 -?- Not connected 136 VDD -?- Power supply (2,5V) 137 CK0 -?- Clock input 138 CK0# -?- Clock input 139 VSS -?- Ground 140 DQS17 -?- Data strobe input / output 141 A10 -?- Address input (multiplexed) 142 CB6 -?- Not connected 143 VDD -?- Power supply (2,5V) 144 CB7 -?- Not connected 145 VSS -?- Ground 146 DQ36 -?- Data input / output 147 DQ37 -?- Data input / output 148 VDD -?- Power supply (2,5V) 149 DQS13 -?- Data strobe input / output 150 DQ38 -?- Data input / output 151 DQ39 -?- Data input / output 152 VSS -?- Ground 153 DQ44 -?- Data input / output 154 RAS# -?- Row address strobe 155 DQ45 -?- Data input / output 156 VDD -?- Power supply (2,5V) 157 S0# -?- Chip select input 158 S1# -?- Chip select input 159 DQS14 -?- Data strobe input / output 160 VSS -?- Ground
  • 7. 161 DQ46 -?- Data input / output 162 DQ47 -?- Data input / output 163 NC -?- Not connected 164 VDD -?- Power supply (2,5V) 165 DQ52 -?- Data input / output 166 DQ53 -?- Data input / output 167 NC -?- Not connected 168 VDD -?- Power supply (2,5V) 169 DQS15 -?- Data strobe input / output 170 DQ54 -?- Data input / output 171 DQ55 -?- Data input / output 172 VDD -?- Power supply (2,5V) 173 NC -?- Not connected 174 DQ60 -?- Data input / output 175 DQ61 -?- Data input / output 176 VSS ?- Ground 177 DQS16 ?- Data strobe input / output 178 DQ62 ?- Data input / output 179 DQ63 ?- Data input / output 180 VDD ?- Power supply (2,5V) 181 SA0 ?- Address in EEPROM 182 SA1 ?- Address in EEPROM 183 SA2 ?- Address in EEPROM 184 VDDSPD ?- Serial EEPROM power supply (2,3-3,6V)