Datasheet

Intel Desktop Board D915GUX/D915GHA Technical Product Specification
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Table 5 describes the LED states when the board is powered up and the 10/100 Mbits/sec LAN
subsystem is operating.
Table 5. LAN Connector LED States
LED Color LED State Condition
Off LAN link is not established.
On LAN link is established.
Green
Blinking LAN activity is occurring.
Off 10 Mbits/sec data rate is selected.Yellow
On 100 Mbits/sec data rate is selected.
1.10.2 Gigabit LAN Subsystem
The Gigabit (10/100/1000 Mbits/sec) LAN subsystem includes the Marvell Yukon 88E50 and an
RJ-45 LAN connector with integrated status LEDs.
1.10.2.1 Marvell Yukon 88E8050 PCI Express 1.0a Integrated MAC/PHY
Gigabit Ethernet Controller
The Marvell Yukon 88E8050 provides the following functions:
• x1 PCI Express link
• Basic 10/100/1000 Ethernet LAN connectivity
• IEEE 802.1p and 802.1q support
• 10/100/1000 IEEE 802.3 compliant
• Compliant to 802.3x flow control support
• Jumbo frame support
• TCP, IP, UDP checksum offload
• Automatic MDI/MDIX crossover
• Full device driver compatibility
• Configuration EEPROMs that contain the MAC address and ASF 2.0 support
• Wake On LAN technology power management support
• PCI Express Active State Power Management Support (L0s)
• ASF 2.0 support
1.10.2.2 RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector (as shown in Figure 12). Table 6 describes the
LED states when the board is powered up and the Gigabit LAN subsystem is operating.
Green LED
Green/Yellow LED
OM16513
Figure 12. LAN Connector LED Locations