Jumpers Setup; Clear Cmos Jumper - ASROCK H81M BTC User Manual

2.5 Jumpers Setup

he illustration shows how jumpers are setup. When the jumper cap is placed on
the pins, the jumper is "Short". If no jumper cap is placed on the pins, the jumper
is "Open". he illustration shows a 3-pin jumper whose pin1 and pin2 are "Short"
when a jumper cap is placed on these 2 pins.

Clear CMOS Jumper

(CLRCMOS1)
(see p.9, No. 16)
CLRCMOS1 allows you to clear the data in CMOS. To clear and reset the system
parameters to default setup, please turn of the computer and unplug the power
cord from the power supply. Ater waiting for 15 seconds, use a jumper cap to
short pin2 and pin3 on CLRCMOS1 for 5 seconds. However, please do not clear
the CMOS right ater you update the BIOS. If you need to clear the CMOS when
you just inish updating the BIOS, you must boot up the system irst, and then shut
it down before you do the clear-CMOS action. Please be noted that the password,
date, time, and user default proile will be cleared only if the CMOS battery is
removed.
USB Power Jumper
(USB01_PWR1)
(see p.9, No. 1)
USB Power Jumper is speciically designed for users who use LED keyboard /
mouse. (only for the USB01 ports)
Pin 1-2 shorted (default):
Stable voltage and high current is provided for LED keyboard / mouse. h e back-
light of your keyboard / mouse will be OFF when the PC is of.
Pin 2-3 shorted:
+5VSB voltage is provided for LED keyboard / mouse. Enable the wake-up func-
tion of your keyboard / mouse. he backlight of your keyboard / mouse will be
ON when the PC is in standby mode.
20
Default Clear CMOS
+5V (Default)
LED keyboard / mouse. h e back- keyboard / mouse. he back-
LED keyboard / mouse. Enable the wake-up func- keyboard / mouse. Enable the wake-up func-
+5VSB