2-20
Chapter 2: Hardware information
2.7
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.
P4P800
®
P4P800 Clear RTC RAM
CLRTC1
Normal
Clear CMOS
(Default)
1 2
2 3
Except when clearing the RTC RAM, never remove the cap on
CLRTC1 jumper default position. Removing the cap will cause system
boot failure!
You do not need to clear the RTC when the system hangs due to
overclocking. For system failure due to overclocking, use the C.P.R.
(CPU Parameter Recall) feature. Shut down and reboot the system so
BIOS can automatically reset parameter settings to default values.
Summary of Contents for P4P800
Page 1: ...Motherboard P4P800 User Guide ...
Page 112: ...4 38 Chapter 4 BIOS Setup ...
Page 142: ...5 28 Chapter 5 Software support ...
