Datasheet

Intel Desktop Board D875PBZ Technical Product Specification
38
Table 7. LAN Connector LED States
LED Color LED State Condition
Off LAN link is not established.
On (steady state) LAN link is established.
Left Green
On (brighter and pulsing) The computer is communicating with another
computer on the LAN.
Off 10 Mbit/sec data rate is selected.
Green
On 100 Mbit/sec data rate is selected.
Right
Orange
On
1000 Mbit/sec data rate is selected.
1.11 Hardware Management Subsystem
The hardware management features enable the Desktop Board D875PBZ to be compatible with the
Wired for Management (WfM) specification. The Desktop Board D875PBZ has the following
hardware management features:
• Fan monitoring and control (through the I/O controller or the hardware monitoring and fan
control ASIC)
• Thermal and voltage monitoring
• Chassis intrusion detection
For information about Refer to
The WfM specification Section 1.4, page 17
1.11.1 Hardware Monitoring and Fan Control ASIC
The features of the hardware monitoring and fan control ASIC (Standard Microsystems
SMSC EMC6D101 or equivalent) include:
• Internal ambient temperature sensor
• Two remote thermal diode sensors for direct monitoring of processor temperature and ambient
temperature sensing
• Power supply monitoring of five voltages (+5 V, +12 V, +3.3 V Standby, +1.5 V, and +VCCP)
to detect levels above or below acceptable values
• Thermally monitored closed-loop fan control, for all four fans, that can adjust the fan speed or
switch the fans on or off as needed
• SMBus interface
For information about Refer to
The location of the fan connectors and sensors for thermal monitoring Figure 13, page 39
The Standard Microsystems SMSC EMC6D101 http://www.smsc.com