User manual

Technical Reference

2.2.4.5 Power Supply Connector

The board has the following power supply connector:

• External Power Supply – the board can be powered through a 12-19 V DC connector on the

back panel. The back panel DC connector is compatible with a 5.5 mm/OD (outer diameter)

and 2.5 mm/ID (inner diameter) plug, where the inner contact is +12-19 (±10%) V DC and the

shell is GND. The maximum current rating is 10 A.

NOTE

External power voltage, 12-19 V DC, is dependent on the type of power brick used.

Table 22. Auxiliary Power Connector

Signal Name

Descriptive Name

+5VSB

5V Standby supply

2 WC_CTL USB Charging Enable/Disable

GND

Ground

+VIN

12V – 19V DC input (fused at 1.5 A)

NOTE

The Auxiliary Power Connector is limited voltage source (output) for 5V Standby and the voltage

supplied to the board (typically 19V DC) for use by expansion peripherals. The Auxiliary Power

Connector is limited to 1.5A max (fused).

NOTE

Connector is Molex part number 53398-0471, 1.25 mm pitch PicoBlade header, surface mount,

vertical, lead-free, 4 circuits.

For information about

Refer to

Power supply considerations Section 2.5.1, page 56

2.2.4.5.1 Power Sensing Circuit

The board has a power sensing circuit that:

• manages CPU power usage to maintain system power consumption below 65 W.

• is designed for use with 65 W AC-DC adapters.

NOTE

It is recommended that you disable this feature (via BIOS option) when using an AC-DC

adapter greater than 65 W.