ASRock DN2800MT manual Jumpers Setup, Description

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.

Jumper	Setting	Description
Clear CMOS Jumper
(3-pin CLRCMOS1)
(see p.8, No. 30)	Default	Clear CMOS

Note: CLRCMOS1 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 CLRCMOS1 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 finish updating the BIOS, you must boot up the system first, and then shut it down before you do the clear-CMOS action. Please be noted that the password, date, time, user default profile and MAC address will be cleared only if the CMOS battery is removed.

AMP_CTL1

(3-pin AMP_CTL1) (see p.8, No. 5)

PIN Signal Name

1GPIO_VOL_UP

2GND

3GPIO_VOL_DW

BLT_PWM1	1-2 : +3V
(3-pin BLT_PWM1)	2-3 : +5V
(see p.8, No. 6)

BLT_CTL1

(8-pin BLT_CLT1) (see p.8, No. 8)

1	PIN	Signal Name
	1	CON_LBKLT_EN
	2	CON_LBKLT_CTL
	3	LCD_BLT_VCC
	4	LCD_BLT_VCC
	5	GND
	6	GND
	7	GPIO_BLT_UP
	8	GPIO_BLT_DW

14