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1
Introduction
11
I/O Connectors
• 1 connector for 2 additional external USB 2.0/1.1 ports
(G4H875-B only)
• 2 connectors for 2 external serial ports (G4H875-N only)
• 1 front audio connector for external line-out and mic-in jacks
• 1 connector for an external game/MIDI port
• 2 internal audio connectors (CD-in and AUX-in)
• 1 connector for IrDA interface
• 2 Serial ATA connectors
• 2 IDE connectors
• 1 floppy connector
• 2 ATX power supply connectors
• 1 Wake-On-LAN connector
• CPU fan, chassis fan, second fan and NB 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 Vcore/VCC3/±12V/VCC/VBAT/5VSB voltages and
failure alarm
• Monitors the fan speed of the chassis fan, CPU fan and NB
fan; and failure alarm
• Read back capability that displays temperature, voltage and fan
speed