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Intel® 5000 Series Chipsets Server Board Family Datasheet
4.5.3
Chassis ID LED
The chassis ID LED provides a visual indication of a system being serviced. It is toggled by the
chassis ID button
4.5.4
Front Panel / Chassis Inputs
The BMC monitors the front panel buttons and other chassis signals. The front panel input
buttons are momentary contact switches, which are de-bounced by the BMC processor
firmware.
4.5.4.1
Chassis Intrusion
Server platforms that use one of the Intel
detection. The BMC monitors the state of the chassis intrusion signal and makes the status of
the signal available. If enabled, a chassis intrusion state change causes the BMC to generate a
sensor event message.
The BMC boosts all fans when the chassis intrusion signal is active. Fans return to their
previous level when the chassis intrusion signal is no longer active. This provides sufficient
cooling when a technician has the cover removed while servicing the unit.
4.5.4.2
Power Button
The power button signal is used to toggle system power. The button is activated by a
momentary contact switch on the front panel assembly. This signal is routed to the BMC as a bi-
directional signal that is monitored by the BMC after the BMC de-bounces the signal. It is also
routed to the chipset signal via blocking circuitry that allows the BMC to lock-out the signal. The
chipset responds to the press of the switch, not the release.
If front panel lock-out is enabled and active, the power button does not power the system on or
off. Instead an event message is generated to the system event log (SEL). See section 4.5.5 for
details on secure mode.
Revision 1.1
Table 37. Chassis ID LED Indicator States
State
Identify active via button
Off
®
5000 Series Chipsets support chassis intrusion
Intel order number D38960-004
System Management
LED State
Solid on
Off
107
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