3-4
Chapter 3: Motherboard info
2. USB device wake-up (3-pin USBPW1-4, USBPW5-10)
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 these jumpers to +5VSB to wake up the
compurer from S3 and S4 sleep modes (no power to CPU, DRAM in slow
refresh, power supply in reduced power mode).
3. 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. This feature requires an
ATX power supply that can supply at least 1A on the +5VSB lead, and a
corresponding setting in the BIOS.
M4A78LT-M LE
M4A78LT-M LE USB device wake-up
2
1
1
2 3
+5V
(Default)
+5VSB
USBPW5-10
2
2
3
+5V
(Default)
+5VSB
(Default)
USBPW1-4
M4A78LT-M LE
M4A78LT-M LE
Keyboard power setting
2
1
2 3
+5V
(Default)
+5VSB
KBPWR
