ASRock B450M Pro4 - Инструкция по эксплуатации - Страница 29

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B450M Pro4 R2.0

2.5  Jumpers Setup

The illustration shows how jumpers are setup. When the jumper cap is placed on 
the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is 
“Open”.

Clear CMOS Jumper
(CLRCMOS1)
(see p.1, No. 18)

Short: Clear CMOS  
Open: Default

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 the pins 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, and user default profile will be cleared only if the CMOS battery is 
removed. Please remember toremove the jumper cap after clearing the CMOS.

If you clear the CMOS, the case open may be detected. Please adjust the BIOS option 
“Clear Status” to clear the record of previous chassis intrusion status.

2-pin Jumper