Asus PCH-DL - Manual (Page 38)

2-20 Chapter 2: Hardware information
3. IEEE 1394 setting (3-pin J3)
This jumper allows you to enable or disable the onboard IEEE 1394
controller. Set to pins 1-2 to activate the 1394 feature.
PCH-DL
PCH-DL 1394 Function Setting
J3
Enable
(Default) Disable
2 3 1 2
PCH-DL
PCH-DL USB Device Wake Up
1
2
USBPW1
(Default)
+5V +5VSB
2
3
USBPW2
(Default)
+5V +5VSB
1 2 2 3
4. USB device wake-up (3-pin 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).
1. 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.
2. The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep
mode.