Asrock B75M-GL R2.0 90-MXGN10-A0UAYZ 用户手册

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2.10  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)
(see p.13,  No. 31)

Note:  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 ac-
tion. 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.

Clear CMOS

Default

 

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.