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Intel Server Board S815EBM1 Product Guide
RJ-45 LAN Connector LEDs
Two LEDs are built into the RJ-45 LAN connector. Table 4 describes the LED states when the
board is powered up and the LAN subsystem is operating.
Table 4.
RJ-45 LAN Connector LEDs
LED Color
LED State
Indicates
Off
10 Mbit/sec speed is selected.
Green
On
100 Mbit/sec speed is selected.
Off
LAN link is not established.
On (steady state)
LAN link is established.
Yellow
On (brighter and pulsing)
The server is communicating with another server on the
LAN.
Battery
A battery on the server board keeps the values in CMOS RAM and the clock current when the
server is turned off. See Chapter 2 for instructions on how to replace the battery.
Power Management Features
Power management is implemented at several levels, including:
•
Software support:
Advanced Power Management (APM)
Advanced Configuration and Power Interface (ACPI)
•
Hardware support:
Wake on LAN technology
S5 wake on all PCI slots
Wake on Ring
Resume on Ring
If the board is used with an ACPI-aware operating system, the BIOS can provide ACPI support.
Otherwise, it defaults to APM support.
Wake on LAN Technology
The Wake on LAN technology connector can be used with PCI bus network adapters that have a
remote wake-up connector. Network adapters that are PCI 2.2 compliant assert the wake-up signal
using the PCI bus signal PME# (pin A19 on the PCI bus connectors). See Figure 21 on page 68 for
the location of the Wake on LAN technology connector on the server board.
CAUTION
For Wake on LAN technology, the 5 V standby line for the power supply must be capable of
providing ad5 V standby current. Failure to provide adequate standby current when
implementing Wake on LAN technology can damage the power supply.
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