ASRock IMB-157D [14/39] Jumpers setup

2.5 Jumpers Setup

The illustration shows how jumpers are

setup. When the jumper cap is placed on

pins, the jumper is “Short”. If no jumper cap

is placed on pins, the jumper is “Open”. The

illustration shows a 3-pin jumper whose

pin1 and pin2 are “Short” when jumper cap

is placed on these 2 pins.

Clear CMOS Jumper

Open: Normal

(2-pin CLRMOS2)

Short: Auto Clear CMOS When AC

(see p.8, No. 29)

Power On

Note: CLRMOS2 allows you to clear the data in CMOS. The data in CMOS includes

system setup information such as system password, date, time, and system

setup parameters. To clear and reset the system parameters to default setup,

please turn off the computer and unplug the power cord, then use a jumper

cap to short the pins on CLRMOS2 for 3 seconds. Please remember to re-

move the jumper cap after clearing the CMOS. If you need to clear the CMOS

when you just nish updating the BIOS, you must boot up the system rst,

and then shut it down before you do the clear-CMOS action.

Clear CMOS Jumper

(3-pin CLRMOS1)

(see p.8, No. 30)

Note: CLRMOS1 allows you to clear the data in CMOS. To clear and reset the

system parameters to default setup, please turn off the computer and unplug

the power cord from the power supply. After waiting for 15 seconds, use a

jumper cap to short pin2 and pin3 on CLRMOS1 for 5 seconds. However,

please do not clear the CMOS right after you update the BIOS. If you need

to clear the CMOS when you just nish updating the BIOS, you must boot up

the system rst, and then shut it down before you do the clear-CMOS action.

Please be noted that the password, date, time, user default prole and MAC

address will be cleared only if the CMOS battery is removed.

Digital Input / Output Power Select

1-2: +12V

(5-pin JGPIO_PWR1)

2-3: +5V

(see p.8 No. 19)

4-5: GND

2-pin jumper

Clear CMOSDefault