Specifications

Intel
®
I/O Expansion Modules Quad Port GbE I/O Module (AXX4GBIOMOD2)
Figure 26. Quad-Port GbE I/O Module Mechanical Drawing
7.4 Intel
®
82576 1 Gb Ethernet Controller
The Intel
®
82576 1 Gb Ethernet Controller is a single, compact component with two fully
integrated 1 Gb Ethernet Media Access Control (MAC).
The Intel
®
82576 supports X4 PCI-Express Gen2 connection, and support I/OAT V3.0
(Input/Output Acceleration Technology). These give the device a high-performance and low-
host memory access latency feature. In addition, the wide internal data path eliminates
performance bottlenecks by efficiently handling large address and data words. To further
optimize the latency from system level, the PCI-Express* x8 interface is directly connected to
IOH.
7.5 EEPROM
The Quad Port Gb Ethernet I/O module provides a SPI serial EEPROM to store configuration
and informational data. This includes pre-boot configuration data, MAC address, and serial
numbers for the 82576.
Revision 1.2
Intel order number: D44901-008
31