Table 2. 10/100 Megabit Leds (Nic1) - Intel SE7501CW2 - E7501 DUAL PGA604 XEON 533MHZ Product Manual

Supported Network Features
The SE7501CW2 supports the following features of the 82550PM and 82540EM controllers:
Glueless 32-bit PCI Bus Master Interface (Direct Drive of Bus), compatible with PCI Bus
Specification, revision 2.1 / 2.2
Chained memory structure, with improved dynamic transmit chaining for enhanced
performance
Programmable transmit threshold for improved bus utilization
Early receive interrupt for concurrent processing of receive data
On-chip counters for network management
Autodetect and autoswitching for 10 or 100 MB/s network speeds (82550 only)
Support for 10 Mb/s, 100 Mb/s, and 1000 Mb/s networks, full or half duplex-capable, with
back-to-back transmit at 100 MB/s
Integrated physical interface to TX magnetics
The magnetics component terminates the 100Base-TX connector interface. A flash device
stores the network ID
Support for Wake on LAN (WOL)
Advanced Networking Service Features (Teaming, Load balancing)
NIC Connector and Status LEDs
®
The Intel Server Board SE7501CW2 supports two RJ45 connectors, one for the 10/100-Megabit
Fast Ethernet controller (NIC1), and the other for the Gigabit Ethernet controller (NIC2). You can
disable the embedded NICs in the BIOS Setup Utility. Disabled NIC are not visible to the
operating system.
NIC1 drives two LEDs on its RJ45 connector. These LEDs indicate link/activity on the LAN and
the speed of operation. This connector is on the right side when looking at the I/O area at the back
of the board. The green LED to the right of the connector indicates a network connection is in
place when it is on and transmit/receive activity when it is blinking. The green LED to the left of
the connector indicates 10 Mbps operation when it is off and100 Mbps operation when it is lit and.
See the following table for an overview.
Table 2. 10/100 Megabit LEDs (NIC1)
LED Color
Green (left)
Green (right)
16
LED State
Off
On
On
Blinking
NIC1 State
10-Mbps
100-Mbps
On
Transmit / Receive activity
Intel Server Board SE7501CW2 Product Guide