Lanner NCA-4112A User Manual page 41

System health monitoring
The BMC implements system sensor monitoring feature. It could monitor voltage, temperature, and current
of critical components.
System Power Management
The BMC implements chassis power and resets functions for system administrators to control and manage
the system power behavior. These functions can be activated by sending the IPMI 2.0 compatible chassis
commands to the BMC over messaging interfaces. The following list summaries the supported functions.
Chassis power on

Chassis power off

Chassis power cycle

Chassis power reset

Chassis power soft

Server's power status report

Watchdog Timer
The BMC provides an IPMI 2.0 compatible watchdog timer which can prevent the system from system
hanging.
Fan Speed Control
BMC is in charge of fan speed control. The fan speed can be modified by varying the duty cycle of PWM
signal. The fan speed control algorithm mainly refers to the readings of on-board temperature sensors.
Field Replaceable Unit (FRU)
The BMC implements an interface for logical FRU inventory devices as specified in IPMI 2.0 specification.
This functionality provides commands for system administrators to access and management the FRU
inventory information.
System Event Log (SEL)
A non-volatile storage space is allocated to store system events for system status tracking.
41