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12
-12V.
18
-5V.
8
Power Good.
9
5V SB (Stand by +5V).
14
PS-ON (Soft ON/OFF).
t
JP4: USB Port
Pin No.
1
SBV1.
2
SBD1-.
3
SBD1+.
4
GND.
5
SBV0.
6
SBD0-.
7
SBD0+.
8
GND.
t
SW: CPU INT./ EXT. FREQ. RATIO
X
OFF
O
ON
SW 1
MHz
ON
60
OFF
66
SW
2
3
x 1.5
X
X
x 2
O
X
x 2.5
O
O
x 3
X
O
x 3.5
X
X
x 4
O
X
x 4.5
O
O
x 5
X
O
x 5.5
X
X
Function
SW
4
AUTO
X
2.0 V
X
2.1 V
X
2.2 V
X
2.3 V
X
2.4 V
O
8
2.5 V
O
X
2.6 V
O
X
2.7 V
O
X
2.8 V
X
X
2.9 V
X
X
3.0 V
X
O
3.1 V
X
O
3.2 V
O
O
3.3 V
O
O
3.4 V
O
3.5 V
O
3-5
Hardware Installation
5
6
7
X
X
O
X
X
X
X
O
X
O
X
X
O
O
X
X
X
X
X
O
X
O
X
X
O
O
X
X
X
O
X
O
O
O
X
O
O
O
O
X
X
O
X
O
O
O
X
O
O
O
O
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