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ASRock 990FX Extreme3 Motherboard
English
2.8 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.
Jumper Setting
Clear CMOS Jumper
(CLRCMOS1)
(see p.2, No. 22)
Note: CLRCMOS1 allows you to clear the data in CMOS. The data in CMOS in-
cludes system setup information such as system password, date, time, and
system setup parameters. To clear and reset the system parameters to de-
fault 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 finished 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.
Clear CMOS
Default
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