Asus A88X-PLUS Owner's Manual page 12

• Hard disk drive activity LED (2-pin HDD_LED)
This 2-pin connector is for the HDD Activity LED. Connect
the HDD Activity LED cable to this connector. The HDD LED
lights up or flashes when data is read from or written to the
HDD.
• System warning speaker (4-pin SPEAKER)
This 4-pin connector is for the chassis-mounted system
warning speaker. The speaker allows you to hear system
beeps and warnings.
• ATX power button/soft-off button (2-pin PWR_SW)
This connector is for the system power button.
• R eset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted
reset button for system reboot without turning off the
system power.
8. USB 2.0 connectors (10-1 pin USB34/56/78)
These connectors are for USB 2.0 ports. Connect the USB module
cable to any of these connector, then install the module to a slot
opening at the back of the system chassis. These USB connectors
comply with USB 2.0 specifications and supports up to 480Mbps
connection speed.
Never connect a 1394 cable to the USB connectors. Doing so
will damage the motherboard!
9. Clear RTC RAM (2-pin CLRTC)
This header allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, 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. Use a metal object such as a screwdriver to short the two pins.
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.
If the steps above do not help, remove the onboard battery and short the two pins again to
clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
1-4
PANEL
+PWR_LED-
PWR_SW
PIN 1
+HDD_LED- RESET
* Requires an ATX power supply
USB34
PIN 1
CLRTC
PIN 1
Chapter 1: Product introduction
SPEAKER
+PWR_LED-