The Power Switch, the Reset Switch, and the LED Indicators all need to be connected to the Motherboard in order for Front Panel Headers to fulfill their main purpose.
This is further explained below.
What are front panel headers?
Generally, A block of connections on a motherboard called the Front Panel Connectors, commonly referred to as the Front Panel Header or FPanel, controls the power-on, power-reset, beep code loudspeaker, and LED light indications on your PC case or chassis.
In conclusion, The connection of the Power Switch, the Reset Switch, and the LED Indicators on the PC Case to the Motherboard is the major purpose of the Front Panel Headers.
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