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The following table lists all voltages routed through the Motherboard (see ‘’Power
Supply Voltage Distribution’’ earlier in this chapter for a complete list of assemblies
using each voltage).
Voltage
Assembly Using Voltage
A1/A2 A2 A5 A6 A7 A10 A90 A98 EXT MON
Motherboard Connector
J1 J2 J5 J6 J7 P10 P90 P98 P95
Connector Pin Number
+18 V A3 – C3 A3 – C3 3A – 3C 5 – 6 18 – 19
48 – 49
–18 V A5 – C5 A5 – C5 5A – 5C 103 3 – 4 25 – 26
55 – 56
+12 V 4 – 5
54 – 55
104–105
21 – 22 15 – 17
45 – 47
+8 V A7 – C7 A7 – C7 14A–14C 27
57
+5 V 16B–16C 1A – 4C 1 – 3
12 – 20
47 – 50
63
98
100
113
27 – 30 1 – 8
31 – 38
GND B1
A2
C2
A4
C4
A6 – C6
A8 – C8
A9
C9
A11
C11
A12–C12B
13–C13C14
A16
C16
B1
A2
C2
A4
C4
A6 – C6
A8 – C8
A9
C9
A11
C11
A12
C12
C13
A14
C14
A16
C16
1B
2A – 2C
4A – 4B
6A – 6B
7A
8A
12B
13A–13
15A–15
17A
18A–18B
19A–19B20
A–20B21A
–21B22A–2
2B23A–23
B25A<@1
50 >
25C26A–26
B27A–27C
28A–28C29
A–29C30A
31A
5A – 5C
7C
9C
10C
11B–11C12
C
13A
15A
17C
19A
20B
21A
21C
22A
24A
26A
27A
28A
29A
30A
7 – 11
21 – 45
59
71
109
118
120
122
147
149
7
9
13
15 – 16
33 – 34
44
47
52
57 – 58
1 9 – 14
20 – 24
39 – 44
50 – 54
60
1
2
6
Voltages and Signals Agilent 35670A
A99 Motherboard
9-28