I2c bus connector: j21, Front panel connector: j22 – MSI X2-109 v2 User Manual
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Hardware Setup
PIN
SIGNAL
1
SMBUS_SDA
2
GND
3
SMBUS_SCL
4
5VCC
5
SMBUS_ALERT#
6
PCIRST#
Pin Definition
6
J21
5
1
2
I2C Bus Connector: J21
This connector, known as I
2
C, is used to connect System Management Bus (SMBus)
interface.
Front Panel Connector: J22
The mainboard provides one front panel connector for electrical connection to the
front panel switches and LEDs.
16
J22
15
1
2
PIN
SIGNAL
DESCRIPTION
1
HDD_LED +
HDD LED +
2
PLED
Power LED
3
HDD_LED -
HDD LED -
4
SLED
Suspend LED
5
FP_RST+
Front Panel Reset +
6
FP_BTN -
Front Panel Button -
7
FP_RST-
Front Panel Reset -
8
GND
Ground
9
NC
No connection
10
KEY
Key
11
SYS_FAULT_H8S
System fault LED
12
ID_LED_H8S
System ID LED
13
NC
No connection
14
LAN1_LED
LAN1 LED
15
NC
No connection
16
LAN2_LED
LAN2 LED
J22 Pin Definition
9265v1.0-2.p65
2008/5/15, 上午 11:44
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