Asus NCL-DS User’s Manual
IE1848
NCL-DS Series Clear RTC RAM
CLRTC1
Normal
(Default)
Clear CMOS
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NCL-DS Series user guide update
This is an information update for the user guide that came with your motherboard
package.
2.6 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 onboard button
cell battery powers the RAM data in CMOS, which include system setup
information such as system passwords.
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. 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.
P/N 15Gxxxxxxxxxxxx
NCL-DS Series user guide update
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2. CPU fan pin selection (3-pin FM_CPU1, FM_CPU2)
NCL-DS Series FM_CPU setting
FM_CPU1
FM_CPU2
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DC mode PWM
(Default)
1
2 2
3
DC mode PWM
(Default)
NCL-DS Series USB device wake up
1
2
(Default)
+5V +5VSB
2
3
USBPW12
1
2
USBPW34
(Default)
+5V +5VSB
2
3
These jumpers allow you to connect either a 3-pin or a 4-pin fan cable plug
to the CPU fan connectors (CPU_FAN1, CPU_FAN2). Set these jumpers to
pins 1-2 if you are using a 3-pin fan cable plug, or to pins 2-3 if you are using
a 4-pin plug.
3. USB device wake-up (3-pin USBPW12, USBPW34)
Set these jumpers to +5V to wake up the computer from S1 sleep mode
(CPU stopped, DRAM refreshed, system running in low power mode) using
the connected USB devices. Set to +5VSB to wake up from S4 sleep mode
(no power to CPU, DRAM in slow refresh, power supply in reduced power
mode).
• The USB device wake-up feature requires a power supply that can
provide 500mA on the +5VSB lead for each USB port; otherwise, the
system will not power up.
• If you are using Windows® 2000, you need to install Service Pack 4 to wake
up the system from S4 mode.
• The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.
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NCL-DS Series user guide update
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