Asus P4P8X SE P4P8X SE user's manual English version E1479 - Page 29

Jumpers - setup

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1.11 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. 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. 3. Plug the power cord and turn ON the computer. 4. Hold down the key during the boot process and enter BIOS setup to re-enter data. Except when clearing the RTC RAM, never remove the cap on CLRTC1 jumper default position. Removing the cap will cause system boot failure! ® P4P8X SE P4P8X SE Clear RTC RAM CLRTC1 12 Normal (Default) 23 Clear CMOS There is no need to clear the RTC when the system hands due to overclocking. For system failure due to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Reboot the system and the BIOS will automatically reset the CPU parameters to its previous setting. ASUS P4P8X SE motherboard user guide 1-19

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ASUS P4P8X SE motherboard user guide
1-19
1.11
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.
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.
3.
Plug the power cord and turn ON the computer.
4.
Hold down the <Del> key during the boot process and enter BIOS setup
to re-enter data.
Except when clearing the RTC RAM, never remove the cap on CLRTC1 jumper
default position. Removing the cap will cause system boot failure!
There is no need to clear the RTC when the system hands due to overclocking.
For system failure due to overclocking, use the C.P.R. (CPU Parameter Recall)
feature. Reboot the system and the BIOS will automatically reset the CPU
parameters to its previous setting.
P4P8X SE
P4P8X SE Clear RTC RAM
CLRTC1
Normal
Clear CMOS
(Default)
12
23