ASROCK FM2A75 Pro4-M Manual De Instrucciones página 25

2.6 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
(CLRCMOS1)
Default Clear CMOS
(see p.2, No. 23)
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, 1394 GUID and MAC address will be cleared only if the
CMOS battery is removed.
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ASRock FM2A75 Pro4-M Motherboard