ASRock P4AL-800 [14/29] Jumpers setup

2.7 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.

Jumper Setting Description

PS2_USB_PWR1 Short pin2, pin3 to enable

(see p.7/p.8 item 22) +5VSB (standby) for PS/2

or USB wake up events.

Note: To select +5VSB, it requires 2 Amp and higher standby current provided by

power supply.

JR1(see p.7/p.8 item 26)

JL1(see p.7/p.8 item 27)

Note: When you connect speakers in back panel and front panel at the same time,

1. If the jumpers JL1 and JR1 are short (see fig. 1), both front panel and

rear panel audio connectors can work.

2. If both jumper caps on JL1 and JR1 are removed (see fig. 2), only front

panel audio works.

However, it requires your front panel to support the function.

Clear CMOS

CLRTC1

(see p.7/p.8 item 17)

Note: CLRTC1 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 pin2 and pin3 on CLRTC1 for 3 seconds. Please remember to put

the jumper cap back to the default setting (short pin1 and pin2) after clearing

the CMOS.

+5V

1_2

+5VSB

2_3

JR1 JL1

fig. 1 fig. 2

Clear CMOS

2_3

1_2

Default