Front Panel; Smbus - DFI CS103-C246 User Manual

Internal I/O Connectors
X

Front Panel

„ Front Panel Pin Assignment
Pin Assignment
1 N.C.
3 HDD Power
HD-LED
5 Signal
7 Ground
RESET
9 Signal
11 N.C.
HDD-LED - Hard Disk Drive LED
Lighting of the LED indicates that the hard drive is being accessed.
RESET - Reset Switch
This switch allows you to reboot without having to power off the system.
PWR-LED - Power/Standby LED
When the system's power is on, this LED will light up. When the system is in the S1 (POS -
Power On Suspend) state, it will blink at 1-second intervals. When the system is in the S3 (STR
- Suspend To RAM) state, it will blink at 4-second intervals.
ATX-SW - ATX Power Switch
This switch is used to power on or off the system.
User's Manual | CS103
1 2
PWR-LED
HD-LED
ATX-SW
RESET
11 12
„ Front Panel Connector
Pin Assignment
2 LED Power
PWR-LED 4 LED Power
6 Signal
8 Ground
ATX-SW
10 Signal
12 ---
Internal I/O Connectors
X

SMBus

The SMBus (System Management Bus) connector is used to connect the SMBus device. It is a
multiple device bus that allows multiple chips to connect to the same bus and enable each one
to act as a master by initiating data transfer.
„ SMBus Pin Assignment
Pin Assignment
1 3V3SB
3 SMBus_Clock
5 SMBus_Alert
Chapter 2
HARDWARE INSTALLATION
„ SMBus
2
1 5
Pin Assignment
2 GND
4 SMBus_DATA
6 ---
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