Asus P4SE/U2 - Manual (Page 20)

1-10 Chapter 1: Motherboard Information
1.9 Jumpers
This section describes and illustrates the jumpers on the motherboard.
1. 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 value is [Disabled]). 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 section 2.5.1 Power Up Control).
P4SE/U2
®
P4SE/U2 Keyboard Power Setting
KBPWR1
+5V
(Default)
1
2
+5VSB
2
3
2. Clear RTC RAM (CLRCMOS1)
These jumpers allow you to clear the Real Time Clock (RTC) RAM in CMOS.
You can clear the CMOS memory of date, time, and system setup parameters
by erasing the CMOS RTC RAM data. The RAM data in CMOS is powered by
the onboard button cell battery.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the battery.
3. Short the jumper by replacing the jumper cap and removing it after 3 secs.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the key during the boot process and enter BIOS setup to
re-enter data.
P4SE/U2
®
P4SE/U2 Clear RTC RAM
CLRCMOS1
Normal Clear CMOS
(Default)
1
2 2
3