Integrated Front Panel User Interface; Power Led; System Status Led; Table 31. System Status Led Indicator States - Intel X38ML - Server Board Motherboard Technical Manual

Platform Management
The BMC does not guarantee any specific rate at which the FIFO's contents are displayed to
the LEDs.
5.7

Integrated Front Panel User Interface

The front panel has the following indicators:

Power LED

System status/fault LED
The front panel provides the following buttons:
Reset button
Power button
5.7.1 Power LED
The BMC does not control the Power Status LED. See the system BIOS EPS for details on
Power Status LED states.
5.7.2

System Status LED

Note: The system status LED state shows the state for the current, most severe fault. For
example, if there was a critical fault due to one source and a non-critical fault due to another
source, the system status LED state would be solid on (the state for the critical fault).
The system status/fault LED is a bicolor LED. Green (status) is used to show a normal operation
state or a degraded operation. Amber (fault) shows the platform hardware state and overrides
the green status. The system status LED is controlled by the BMC. Early in the startup boot
process, the BIOS checks the chipset for any memory errors.
The BMC-detected states are included in the LED states. For fault states monitored by BMC
sensors, the contribution to the LED state follows the associated sensor state, with priority given
to the most critical asserted state.
When the server is powered down (transitions to the DC-off state or S5), the BMC is still on
standby power and retains the sensor and front panel status LED state established before the
power-down event.
The LED state information in Table 31 is dependent on the underlying sensor support.
Color State
Green Solid on Ok
Green ~1 Hz blink Degraded
Amber ~1 Hz blink Non-fatal
62

Table 31. System Status LED Indicator States

System Status
System ready
Condition detected by BMC.
CPU disabled
Non-critical threshold crossed – temperature, voltage
Non-fatal alarm. The system is likely to fail. Condition detected by the
BMC.
Critical threshold crossed – temperature
Intel order number E15331-006
Intel® Server Board X38ML
Description
Revision 1.3