MSI IM945GSED User Guide - Page 32

Power Supply

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MS-9830 Mainboard Power Supply System Power Connector: ATX1 (for option A) This connector allows you to connect a 20-pin power supply. To connect the power supply, make sure the power supply connector is inserted in the proper orientation and the pins are aligned. Then push down the power supply firmly into the connector. Pin Definition ATX1 PIN SIGNAL 1 +3.3V PIN SIGNAL 11 +3.3V 20 11 2 +3.3V 12 -12V 10 1 3 GND 13 GND 4 +5V 14 PS-ON# 5 GND 15 GND 6 +5V 16 GND 7 GND 17 GND 8 PW R OK 18 Res 9 5VSB 19 +5V 10 +12V 20 +5V 12V System Power Connector: JPW1 (for option B, C, D, E) This 12V power connector is used to provide power to the system & CPU. 4 1 JPW1 Pin Definition PIN SIGNAL 1 12V 2 12V 3 GND 4 GND 5V/12V HDD Power Connector: JPWR1 (for option B, C, D, E) This connector provides power to the hard disk drives. 1 4 JPWR1 Pin Definition PIN SIGNAL 1 5V 2 GND 3 GND 4 12V 2-4

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2-4
MS-9830 Mainboard
System Power Connector: ATX1
(for option A)
This connector allows you to connect a 20-pin power supply. To connect the power
supply, make sure the power supply connector is inserted in the proper orientation
and the pins are aligned. Then push down the power supply firmly into the connector.
Power Supply
PIN
SIGNAL
1
12V
2
12V
3
GND
4
GND
Pin Definition
12V System Power Connector: JPW1
(for option B, C, D, E)
This 12V power connector is used to provide power to the system & CPU.
5V/12V HDD Power Connector: JPWR1
(for option B, C, D, E)
This connector provides power to the hard disk drives.
PIN
SIGNAL
11
+3.3V
12
-12V
13
GND
14
PS-ON#
15
GND
16
GND
17
GND
18
Res
19
+5V
20
+5V
PIN
SIGNAL
1
+3.3V
2
+3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
PW R OK
9
5VSB
10
+12V
Pin Definition
ATX1
10
1
20
11
JPW1
1
4
JPWR1
4
1
PIN
SIGNAL
1
5V
2
GND
3
GND
4
12V
Pin Definition