Clear Cmos (Jp4); Case Open Select (Jp5); At/Atx Power Mode Select (Jp6) - AXIOMTEK MANO521 Series User Manual

MANO521 Mini ITX Motherboard
2.3.4

Clear CMOS (JP4)

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
2.3.5

Case Open Select (JP5)

Use this jumper for chassis intrusion detection feature.
Function
Close (Default)
Active case open
2.3.6

AT/ATX Power Mode Select (JP6)

Use this jumper to select AT or ATX power mode.
Function
ATX mode (Default)
AT mode
10
Setting
1-2 close
2-3 close
Setting
1-2 close
1-2 open
Setting
1-2 close
2-3 close
Board and Pin Assignments