Asus T3-P5945GC User Manual

Page 43

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4-4

Chapter 4: Motherboard Info

2. USB device wake-up (3-pin USBPW12, USBPW34)

Set these jumpers to +5V to wake up the computer from S1 sleep

mode (CPU stopped, DRAM refreshed, system running in low power

mode) using the connected USB devices. Set to +5VSB to wake up

from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh,

power supply in reduced power mode).

• The USB device wake-up feature requires a power supply that can

provide 500mA on the +5VSB lead for each USB port; otherwise, the

system would not power up.

• The total current consumed must NOT exceed the power supply

capability (+5VSB) whether under normal condition or in sleep mode.

3. Keyboard power (3-pin KBPWR)

This jumper allows you to enable or disable the keyboard wake-up

feature. Set this jumper to pins 2-3 (+5VSB) to wake up the computer

when you press a key on the keyboard (the default is the Space Bar).

This feature requires an ATX power supply that can supply at least 1A

on the +5VSB lead, and a corresponding setting in the BIOS.

R

P5L13L

P5L13L

USB device Wake up

3

2

2

1

+5V

(Default)

+5VSB

USBPW34

3

2

2

1

+5V

(Default)

+5VSB

USBPW12

R

P5L13L

P5L13L

Keyboard Power Setting

(Default)

+5V

+5VSB

KBPWR

2 3

1 2

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