Clear Cmos (Jp1); At/Atx Power Mode Select (Jp3) - AXIOMTEK MANO522 Series User Manual

MANO522 Mini ITX Motherboard
Jumper Description
Clear CMOS
JP1
Default: Normal Operation
AT/ATX Power Mode Select
JP3
Default: ATX Mode
JP4
COM1 RS-232/422/485 Mode Select
JP6
Default: RS-232
JP7
COM1 Data/Power Select
JP5
Default: RS-232 Data
LVDS Backlight PWM/DC Mode Select
JP8
Default: PWM
LVDS VDD Select
JP9
Default: +3.3V
Case Open Select
JP10
Default: Close
2.3.1

Clear CMOS (JP1)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, time, and system setup parameters by erasing the
CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS,
which includes system setup information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the onboard battery.
3. Move the jumper clip from pins 1-2 (default) to pins 2-3. Keep the clip on pins 2-3
for about 5~10 seconds, then move the clip back to pins 1-2.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter
data.
Function
Normal operation (Default)
Clear CMOS
2.3.2

AT/ATX Power Mode Select (JP3)

This 3-pin (pitch=2.0mm) jumper allows you to select AT or ATX power mode.
Function
ATX mode (Default)
AT mode
8
COM1 Pin 1: DCD#
COM1 Pin 9: RI#
Setting
1-2 close
2-3 close
Setting
1-2 close
2-3 close
Setting
1-2 Close
1-2 Close
1-2 Close
3-5, 4-6 Close
3-5, 4-6 Close
3-5 Close
4-6 Close
1-2 Close
1-2 Close
1-2 Close
Board and Pin Assignments