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Chapter 1: Product introduction
1.8 Jumpers
1. Clear RTC RAM (CLRTC1)
This jumper allows 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, that include system
setup information such as system passwords, 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 onboard battery.
3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins
2-3 for about 5~10 seconds, then move the cap back to pins 1-2.
4. Replace the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS setup to re-
enter data.
2. 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 [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 2.5.5 Power Up Control).
K8V-F
®
K8V-F Clear RTC RAM
CLRTC
Normal Clear CMO
S
(Default)
1
2
3
2