Asus a7n8x Motherboard DIY Troubleshooting Guide - Page 21

ASUS A7N8X Motherboard, Clear RTC RAM CLRTC1, Keyboard power 3-pin KBPWR1

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3. Clear RTC RAM (CLRTC1) (optional) This jumper clears the Real Time Clock (RTC) RAM of date, time and system setup parameters in CMOS. 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. Move the jumper caps from [1-2] to [2-3] momentarily. Replace the jumper cap to the original position, [1-2]. 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. ® A7N8X A7N8X Clear RTC RAM CLRTC1 12 23 Normal (Default) Clear CMOS 4. 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). KBPWR1 12 +5V (Default) 23 +5VSB ® A7N8X A7N8X Keyboard Power Setting ASUS A7N8X Motherboard 1-11

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ASUS A7N8X Motherboard
1-11
3.
Clear RTC RAM (CLRTC1)
(optional)
This jumper clears the Real Time Clock (RTC) RAM of date, time and system
setup parameters in CMOS. 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.
Move the jumper caps from [1-2] to [2-3] momentarily. Replace the
jumper cap to the original position, [1-2].
4.
Re-install 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.
A7N8X
A7N8X Clear RTC RAM
CLRTC1
Normal
Clear CMOS
(Default)
23
12
4.
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).
A7N8X
A7N8X Keyboard Power Setting
KBPWR1
(Default)
+5V
12
+5VSB
23