English, 6 jumpers setup – ASRock FM2A85X Extreme4-M User Manual
Page 25
25
ASRock FM2A85X Extreme4-M Motherboard
English
Clear CMOS
Default
Clear CMOS Jumper
(CLRCMOS1)
(see p.2, No. 25)
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.
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.
If you clear the CMOS, the case open may be detected. Please 
adjust the BIOS option “Clear Status” to clear the record of previ-
ous chassis intrusion status.