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Chapter 3: Motherboard Connections
JBT1 contact pads
CMOS Clear Contacts
JBT1 is used to clear CMOS. Instead of pins, this jumper consists of contact pads. See the
CMOS Clear section
for more information.
3.3 LED Indicators
BMC Heartbeat LED
LEDM1 is a BMC Heartbeat indicator. It blinks green when the BMC is working properly.