MSI K8MM3 Series

2-17
Hardware Setup
Front Panel Connectors: JFP1 & JFP2
The mainboard provides two front panel connectors for electrical connection to the
front panel switches and LEDs. JFP1 is compliant with Intel
®
Front Panel I/O Connec-
tivity Design Guide.
PIN SIGNAL DESCRIPTION
1 HD_LED_P Hard disk LED pull-up
2 FP PWR/SLP MSG LED pull-up
3 HD_LED_N Hard disk active LED
4 FP PWR/SLP MSG LED pull-up
5 RST_SW_N Reset Switch low reference pull-down to GND
6 PWR_SW_P Power Switch high reference pull-up
7 RST_SW_P Reset Switch high reference pull-up
8 PWR_SW_N Power Switch low reference pull-down to GND
9 RSVD_DNU Reserved. Do not use.
JFP1 Pin Definition
PIN SIGNAL PIN SIGNAL
1 GND 2 SPK-
3 SLED 4 BUZ+
5 PLED 6 BUZ-
7 NC 8 SPK+
JFP2 Pin Definition
12
9
10
JFP1
HDD
LED
Reset
Switch
Power
LED
Power
Switch
7
8
Power
LED
Speaker
1
2
JFP2
Chassis Intrusion Switch Connector: JCI1
This connector is connected to a 2-pin chassis switch. If the
chassis is opened, the switch will be short. The system will record
this status and show a warning message on the screen. To clear
the warning, you must enter the BIOS utility and clear the record.
JCI1
CINTRU GND
1 2