Product Description
35
The optional onboard two-channel audio subsystem can be upgraded to four- or six-channel audio
using a CNR audio upgrade card in a slave configuration. CNR audio upgrade cards are available
in multiple configurations from several different vendors supporting analog or S/PDIF digital
connections.
✏
NOTES
• For an audio multi-channel upgrade, you must install an audio CNR card that is compatible
with the onboard codec.
• If you install an audio CNR card that does not provide a multi-channel upgrade, the integrated
audio codec on the Desktop Board D845PEBT2 will be disabled.
• Check with your CNR vendor to ensure that the CNR card has been tested with ICH4-based
systems.
For information about Refer to
CNR audio upgrade cards http://developer.intel.com/technology/cnr/
1.15 Hardware Management Subsystem
The hardware management features enable the Desktop Board D845PEBT2 to be compatible with
the Wired for Management (WfM) specification. The Desktop Board D845PEBT2 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
1.15.1.1 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 three 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 9, page 36
The Standard Microsystems SMSC EMC6D101 http://www.smsc.com
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