Asus p4r800vm P4R800-VM User Manual - Page 26

Product introduction - cpu support

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2. USB device wake-up (3-pin USBPW12, USBPW34, USBPW56) 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 sleep mode (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). Both jumpers are set to pins 1-2 (+5V) by default because not all computers have the appropriate power supply to support this feature. The USBPW_12 and USBPW_34 jumpers are for the rear USB ports. The USBPW_56 jumper is for the internal USB header that you can connect to the front USB ports. 1. This feature requires a power supply that can provide at least 1A on the +5VSB lead when these jumpers are set to +5VSB. 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. USBPW12 12 23 +5V (Default) +5VSB USBPW34 12 23 P4R800-VM P4R800-VM USB Device Wake Up +5V (Default) +5VSB USBPW56 12 23 +5V (Default) +5VSB 3. Keyboard power (3-pin KBPWR1) 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 2.5.5 "APM Configuration"). P4R800-VM KBPWR1 12 23 +5V (Default) +5VSB P4R800-VM Keyboard Power Setting 1-16 Chapter 1: Product introduction

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1-16
Chapter 1: Product introduction
2.
USB device wake-up (3-pin USBPW12, USBPW34, USBPW56)
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 sleep mode (no
power to CPU, DRAM in slow refresh, power supply in reduced power mode).
Both jumpers are set to pins 1-2 (+5V) by default because not all computers
have the appropriate power supply to support this feature.
The USBPW_12 and USBPW_34 jumpers are for the rear USB ports. The
USBPW_56 jumper is for the internal USB header that you can connect to the
front USB ports.
1.
This feature requires a power supply that can provide at least 1A on the
+5VSB lead when these jumpers are set to +5VSB. 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.
P4R800-VM
+5V
(Default)
+5VSB
23
2
1
USBPW34
USBPW12
23
2
1
+5V
(Default)
+5VSB
USBPW56
23
2
1
+5V
(Default)
+5VSB
P4R800-VM USB Device Wake Up
3.
Keyboard power (3-pin KBPWR1)
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 2.5.5
“
APM Configuration
”
).
P4R800-VM
P4R800-VM Keyboard Power Setting
(Default)
+5V
+5VSB
KBPWR1
23
12