Jumpers; Clear Rtc Ram (Clrtc); To Erase Rtc Ram - Asus F1A55-M LX Series User Manual

VGA configuration
Single VGA/PCIe card
Dual VGA/PCIe card
• In single VGA card mode, use the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16
• We recommend that you provide sufficient power when running CrossFireX™ mode.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN when using
1.9

Jumpers

Clear RTC RAM (CLRTC)

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 onboard button cell battery powers the RAM data in
CMOS, which include system setup information such as system passwords.
F1A55-M LX PLUS
F1A55-M LX PLUS Clear RTC RAM
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 reenter
data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper again
• You do not need to clear the RTC when the system hangs due to overclocking. For
1-18
PCI Express operating mode
PCIe x16_1
x16 (Recommended for single VGA card)
x16
graphics card to get better performance.
See page 1-22 for details.
multiple graphics cards for better thermal environment.
1 2
Normal
(Default)
to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
system failure due to overclocking, use the CPU Parameter Recall (C.P.R) feature. Shut
down and reboot the system so the BIOS can automatically reset parameter settings to
default values.
PCIe x16_2
N/A
x4
CLRTC
2 3
Clear RTC
Chapter 1: Product introduction