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ASUS P4C800 Deluxe motherboard user guide
2-19
2.7 Jumpers
2. USB device wake-up (3-pin USBPW12, USBPW34, USBPW56,
USBPW78)
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 USBPWR12 and USBPWR34 jumpers are for the rear USB ports.
The USBPWR56 and USBPWR78 jumper is for the internal USB
header that you can connect to the front USB ports.
1. 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) if you wish 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 (see section 4.5.1 Power Up Control).
P4C800
®
21
+5V
(Default)
23
+5VSB
3
2
21
+5V
(Default)
+5VSB
+5V
(Default)
+5VSB
P4C800 USB Device Wake Up
USBPW12
USBPW34
USBPW78
USBPW56
P4C800
®
P4C800 Keyboard Power Setting
(Default)
+5V +5VSB
KBPWR
2312