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Intel NUC Board NUC5i5MYBE Technical Product Specification
2.2.4.4.1
Hard Drive Activity LED Header
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from
or written to a hard drive. Proper LED function requires a SATA hard drive or optical drive
connected to an onboard SATA connector.
2.2.4.4.2
Reset Switch Header
Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type switch that is
normally open. When the switch is closed, the board resets and runs the POST.
2.2.4.4.3
Power/Sleep LED Header
Pins 2 and 4 can be connected to a one- or two-color LED. Table 30 and Table 31 show the
possible LED states.
Table 30. States for a One-Color Power LED
LED State
Off
Blinking
Steady
Table 31. States for a Dual-Color Power LED
LED State
Off
Secondary color blinking
(amber)
Primary color steady (white)
NOTE
The LED behavior shown in Table 30 is default – other patterns may be set via BIOS setup.
2.2.4.4.4
Power Switch Header
Pins 6 and 8 can be connected to a front panel momentary-contact power switch. The switch
must pull the SW_ON# pin to ground for at least 50 ms to signal the power supply to switch on or
off. (The time requirement is due to internal debounce circuitry on the board.) At least two
seconds must pass before the power supply will recognize another on/off signal.
2.2.4.5
Low Speed Custom Solutions Header (2.0 mm Pitch)
The Low Speed Customs Solution header is designed to expose access to platform-level signals,
enabling custom development of solutions based on such signals.
3.3 Vstby and 5 Vstby: can be used to power custom solution (such as daughtercard, etc.) with
•
up to 2 A of current rating capability per each of these voltages. Pins can also be used to
monitor the presence of 3.3 V and 5 V standby power. Standby power is always on, even
when board power is off.
60
Description
Power off
Standby
Normal operation
Description
Power off
Standby
Normal operation
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