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System Management
4.19 Field Replaceable Unit (FRU) / Fault LED Control
Several sets of FRU / POST / fault LEDs are supported. Some LEDs are owned by the BMC
and some by the BIOS.
The BMC owns control of the following FRU / fault LEDs:
Fan fault LEDs: There is a fan fault LED associated with each fan. The BMC will light a
fan fault LED if the associated fan tach sensor has a lower critical threshold event status
asserted. Fan tach sensors are manual rearm sensors, therefore once the lower critical
threshold has been crossed, the LED will remain lit until the sensor is rearmed. These
sensors are rearmed at system DC power-on and system reset.
CPU fault LEDs: There is a CPU fault LED associated with each processor slot. The
BMC will light a CPU fault LED when the associated processor status sensor detects
either configuration error or processor disabled. Processor status sensors are manual
rearm sensors, therefore once either of these circumstances are detected, the LED will
remain lit until the sensor is rearmed. These sensors are NOT rearmed at system DC
power-on and system reset.
4.20 Hot-swap Backplane (HSBP) Support
The following is a list of BMC – HSC interactions.
BMC initialization agent configures HSC sensors. This occurs when the system is DC
powered-on or reset.
Commands may be bridged through the BMC to the HSC via the IPMB. This is typically
used by system software to access HSC status or to update the HSC firmware.
The HSBP, including the HSC, does not have power applied when the system is in the power-
off (S0 sleep) state. Therefore when the system transitions to the DC power-on state, the HSC
must reach an initialized state before communication with the BMC is possible.
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4.21 Intel
Remote Management Module (Intel
®
The Intel
Remote Management Module (Intel
redirection capability and other advanced functionality. This section describes specific BMC
®
support for the Intel
RMM add-in card.
4.21.1
Discovery Sequence
The server board BMC supports a set of commands for setting and retrieving configuration
information related to the server board support for the Intel
primarily used by the add-in card when power is first applied to the card. They query the BMC to
discover platform support for the add-in connector.
®
The Intel
RMM uses this information to adapt to the specific connector support, to form a
complete description of the network connectivity options available, and as the first step in
reconfiguring the BMC according to its own configuration requirements.
128
Intel® 5000 Series Chipsets Server Board Family Datasheet
®
RMM) provides keyboard, video, mouse (KVM)
Intel order number D38960-004
®
RMM) Support
®
RMM. These commands are
Revision 1.1
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