ECS Z270-LIGHTSABER, User Manual, Page: 35 / 91

Chapter 2
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Z270-LIGHTSABER USER MANUAL
This concludes Chapter 2. The next chapter covers the BIOS.
Hard Drive Activity LED
Connecting pins 1 and 3 to a front panel mounted LED provides visual indication that
data is being read from or written to the hard drive. The LED will also show activity
when M2 hard drive is transferring the data.
Power/Sleep/Message waiting LED
Connecting pins 2 and 4 to a dual-color, front panel mounted LED provides power on/
off, sleep, and message waiting indication.
Reset Switch
Supporting the reset function requires connecting pin 5 and 7 to a momentary-con-
tact switch that is normally open. When the switch is closed, the board resets and
runs POST.
Power Switch
Supporting the power on/off function requires connecting pins 6 and 8 to a momen-
tary-contact switch that is normally open. The switch should maintain contact for at
least 50 ms to signal the power supply to switch on or off. The time requirement is
due to internal de-bounce circuitry. After receiving a power on/off signal, at least
two seconds elapses before the power supply recognizes another on/off signal.