Back Panel & Power Supply - MSI MS-7021 Manual

MS-7021 ATX Mainboard
Back Panel & Power Supply
The back panel provides the following connectors:
M o us e
COM A
Keyboard
ATX 20-Pin Power Connector: JWR1
This connector allows you to connect to an ATX power supply.
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
4
3
1 2
JPW1
JPW1 Pin Definition
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V
2-4
Parallel
20
10
PIN
1
2
11
1
3
4
JWR1
5
6
7
8
9
10
LAN
SPDIF-Out
USB
USB
JWR1 Pin Definition
SIGNAL PIN
3.3V 11
3.3V 12
GND 13
5V 14
GND 15
5V 16
GND 17
PW_OK 18
5V_SB 19
20
12V
L-in
L-out
M IC
SIGNAL
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
5V
5V