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Chapter 4: Motherboard Connections
BMC Heartbeat LED
A BMC Heartbeat LED is located at LEM1 on the serverboard. When this LED is blinking,
BMC functions normally. See the table at right for more information.
BMC Heartbeat
LED States
Color/State Definition
Green: Blinking
BMC: Normal
Onboard PWR LED Indicator
LED States
Color/State Definition
Off
System Off
(PWR cable not connected)
Green: On
System Power On
Onboard Power LED
An Onboard Power LED is located at LED2 on the serverboard. When this LED is on, the
system is on. Be sure to turn off the system and unplug the power cord before removing or
installing components. See the tables at right for more information.