Introduction
1
12
I/O Connectors
• 3 connectors for 6 additional external USB 2.0/1.1 ports
• 1 connector for 1 external serial port
• 1 front audio connector for external line-out and mic-in jacks
• 1 CD-in internal audio connector
• 1 S/PDIF-in/out connector
• 1 connector for IrDA interface
• 2 Serial ATA connectors
• 2 IDE connectors
• 1 floppy drive interface supports up to two 2.88MB floppy
drives
• 2 ATX power supply connectors
• 1 Wake-On-LAN connector
• 1 opened chassis alarm connector
• CPU fan, chassis fan and second fan connectors
1.1.2 System Health Monitor Functions
The system board is capable of monitoring the following “system
health” conditions.
• Monitors CPU/system temperature and overheat alarm
• Monitors CPU/1.5V/5VSB/VBAT/3.3V/5V/
±
12V voltages
• Monitors the fan speed of the CPU fan and second fan; and
failure alarm
• Automatic second fan on/off control
• Read back capability that displays temperature, voltage and fan
speed
• Opened chassis alarm