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P7p55 lx keyboard power setting, P7p55 lx usb device wake up – Asus P7P55 LX/JOOYON/SI User Manual

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ASUS P7P55 LX

1-21

2.

Keyboard power (3-pin KBPWR)
This jumper allows you to enable or disable the keyboard wake-up feature. When you

set this jumper to pins 2–3 (+5VSB), you can wake up the computer by pressing 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.

3.

USB device wake-up (3-pin USBPW1-8, 3-pin USBPW9-14)
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.

P7P55 LX

P7P55 LX Keyboard Power Setting

P7P55 LX

P7P55 LX USB Device Wake Up

2

1

2 3

+5V

(Default)

+5VSB

USBPW9-14

2
1

2

3

+5V

+5VSB

(Default)

USBPW1-8

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