MSI Z490 GAMING CARBON WIFI - JBAT1: Clear CMOS (Reset BIOS) Jumper; JTBT1: Thunderbolt Add-On Card Connector; JRTD3: Intel RTD3 Connector

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Overview of Components
JBAT1: Clear CMOS (Reset BIOS) Jumper
There is CMOS memory onboard that is external powered from a battery located on
the motherboard to save system configuration data. If you want to clear the system
configuration, set the jumpers to clear the CMOS memory.
Keep Data
(default)
Clear CMOS/
Reset BIOS
Resetting BIOS to default values
1. Power off the computer and unplug the power cord.
2. Use a jumper cap to short JBAT1
3. Remove the jumper cap from JBAT1.
4. Plug the power cord and Power on the computer.
JTBT1: Thunderbolt Add-on Card Connector

JRTD3: Intel RTD3 Connector

I/O card that supports RTD3.
JTBT1
1
1 FORCE_PWR 2 SCI_EVENT
3  4 
5 Ground
1
JRTD3
1 WAKE 2 PWR EN
3 GND