Table 77. Chassis Id Leds; Table 78. Fault/Status Led - Intel SE7520AF2 Technical Product Specification

Platform Management
The Chassis Identify LED can be turned on either locally via the push-button signal, or by local
or remote software using the IPMI Chassis Identify command. The following list summarizes the
Chassis Identify Push-button and LED operation:
− The Identify signal state is preserved on Standby power across system power-on/off and
system hard resets when an Intel Management Module is present. It is not preserved
with the on-board platform instrumentation (mBMC and no IMM present) or when A/C
power is removed. The initial LED state is OFF when A/C power is applied.
− The IPMI Chassis Identify command can be used to control the LED. If the Chassis
Identify command is used to turn the LED On, the command will automatically time out
and turn off the LED unless another Chassis Identify command to turn on the LED is
received. The default timeout for the command is 15 seconds. The baseboard supports
the optional command parameter to allow the timeout to be set anywhere from 1 to 255
seconds.
− The optional timeout parameter in the Chassis Identify command also allows software to
tell the LED to go Off immediately.
− The Chassis Identify push button blinks the ID LED for 15 seconds when pressed (on-
board platform instrumentation). When an Intel Management Module is present,
however, this button works using a toggle "push-on/push-off" operation. Each press of
the push-button toggles the LED signal state between On and Off. If the pushbutton is
used to turn the LED On, it will stay on indefinitely, until either the button is pressed
again or a Chassis Identify LED command causes the LED to go Off.
Color Condition
Off
Blue
On/Blink
6.3.4.5 Status/Fault LED
The following table shows mapping of sensors/faults to the LED state.
Color Condition
Solid
Green
Blink
Solid
Amber
Blink
Off Solid
Critical Condition
Any critical or non-recoverable threshold crossing associated with the following events:
174

Table 77. Chassis ID LEDs

Default
Identify button pressed or Chassis Identify command executed

Table 78. Fault/Status LED

System Ready
System Ready, but degraded. CPU fault, DIMM killed
Critical Failure: critical fan, voltage, temperature state
Non-Critical Failure: non-critical fan, voltage, temperature state
Not Ready. POST error/NMI event/CPU or terminator missing
Intel order number C77866-003
Intel® Server Board SE7520AF2 TPS
When
When
Revision 1.2