ASRock Industrial SBC-250, User Manual

Page: 14 / 37

14
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 1-2: Clear CMOS
(CLRMOS1)
2-3: Auto Clear (PWR OFF)
(see p.8, No. 4)
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 pin1 and pin2 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 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 date, time, user default profile and MAC address will
be cleared only if the CMOS battery is removed.
Panel Power Select (LCD_VCC) Use this to set up the VDD
(5-pin PNL_PWR1)
power of the LVDS connector.
(see p.8 No. 7)
1-2: +3V
2-3: +5V
3-4: +5V
4-5: +12V
GPIO Default Setting 1-2: Pull-High
(3-pin JGPIO_SET1)
2-3: Pull-Low
(see p.8 No. 22)
3 2 1
1
3 2 1
CON_LBKLT_EN and CON_LBKLT_CTL 1-2: 5V Level
Voltage Level 2-3: 3V Level
(3-pin BLT_EN_PWM1)
(see p.8 No. 30)