Asus E2234 KBPWR, USBPW1, USBPW2, P5NSLI USB Device Wake Up, P5NSLI Keyboard Power Setting, 3. Keyboard power (3-pin KBPWR)

2. USB devi ce wake-up (3-pi n USBPW1, USBPW2)

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).

USBPW1	USBPW2
3	3
2	2
+5VSB	+5VSB
2	2
1	1
+5V	+5V
(Default)	(Default)

P5NSLI USB Device Wake Up•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-pi n 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.

KBPWR

1 2

+5V

(Default)

2 3

+5VSB

P5NSLI Keyboard Power Setting

1-26 Chapter 1: Product introduction