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4-44-4
4-4
Chapter 4: Motherboard informationChapter 4: Motherboard information
Chapter 4: Motherboard informationChapter 4: Motherboard information
Chapter 4: Motherboard information
2.2.
2.2.
2.
USB device wake-up (3-pin USBPW12, USBPW34,USB device wake-up (3-pin USBPW12, USBPW34,
USB device wake-up (3-pin USBPW12, USBPW34,USB device wake-up (3-pin USBPW12, USBPW34,
USB device wake-up (3-pin USBPW12, USBPW34,
USBPW56, USBPW78)USBPW56, USBPW78)
USBPW56, USBPW78)USBPW56, USBPW78)
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 USB device wake-up feature requires a power supply that can
provide 500mA on the +5VSB lead for each USB port; otherwise,
the system will not power up.
• The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.
3.3.
3.3.
3.
Keyboard power (3-pin KBPWR1)Keyboard power (3-pin KBPWR1)
Keyboard power (3-pin KBPWR1)Keyboard power (3-pin KBPWR1)
Keyboard power (3-pin KBPWR1)
This jumper allows you to enable or disable the keyboard wake-up
feature. Default setting is 2-3. Set this jumper to pins 1-2 (+5V) if
you do not want to wake up the computer when you press a key on
the keyboard. This feature requires an ATX power supply that can
supply at least 1A on the +5VSB lead, and a corresponding setting in
the BIOS.
®
Keyboard power setting
(Default)
+5V +5VSB
KBPWR1
2312
®
USB device wake-up
3
2
21
+5V
(Default)
+5VSB
USBPW78
USBPW56
3
2
21
+5V
(Default)
+5VSB
USBPW34
USBPW12