Asus P7P55-M TPM User Guide - Page 32

P7P55-M USB Device Wake Up

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2. 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 (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 12 23 +5V +5VSB (Default) P7P55-M P7P55-M Keyboard Power Setting 3. USB device wake-up (3-pin USBPW1-8, 3-pin USBPW9-14) 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). USBPW1-8 12 23 +5V +5VSB (Default) P7P55-M USBPW9-14 12 23 +5V P7P55-M USB Device Wake Up +5VSB (Default) • 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. 1-22 Chapter 1: Product introduction

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1-22
Chapter 1: Product introduction
2.
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 (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.
3.
USB device wake-up (3-pin USBPW1-8, 3-pin USBPW9-14)
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 would not power up.
•
The total current consumed must NOT exceed the power supply capability (+5VSB)
whether under normal condition or in sleep mode.
P7P55-M
P7P55-M Keyboard Power Setting
2
1
2
3
+5V
(Default)
+5VSB
KBPWR
P7P55-M
P7P55-M USB Device Wake Up
2
1
2
3
+5V
(Default)
+5VSB
USBPW1-8
2
1
2
3
+5V
+5VSB
(Default)
USBPW9-14