Desktop Board Features 
17 
Legacy Input/Output (I/O) Controller 
The Winbond 83627DHG-P legacy I/O controller features the following: 
•  Low pin count (LPC) interface 
•  One serial port interface via an onboard header 
•  Serial IRQ interface compatible with serialized IRQ support for PCI systems 
•  Intelligent power management, including a programmable wake up event interface 
•  PCI power management support 
LAN Subsystem 
The LAN subsystem includes: 
•  Intel ICH7  
•  Realtek 8111D Gigabit Ethernet Controller for operation at 10/100/1000 Mb/s 
•  RJ-45 LAN connector with integrated status LEDs 
 
The subsystem features: 
•  CSMA/CD protocol engine 
•  LAN connect interface between ICH7 and the LAN controller 
•  PCI bus power management 
Related Links: 
Go to the following link for information about LAN software and drivers:  
http://support.intel.com/support/motherboards/desktop
 
RJ-45 LAN Connector LEDs 
Two LEDs are built into the RJ-45 LAN connector located on the back panel (see 
Figure 2).  These LEDs indicate th
e status of the LAN.   
 
Figure 2.  LAN Connector LEDs