Jumpers, Clear cmos jumper: jbat1 – Acer 3300S User Manual

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Chapter 5

Clear CMOS Jumper: JBAT1

There is a CMOS RAM on board that has a power supply from external

battery to keep the data of system configuration. With the CMOS RAM, the
system can automatically boot OS every time it is turned on. That battery has
long life time for at least 5 years. If you want to clear the system configuration,
use the JBAT1 (Clear CMOS Jumper ) to clear data. Follow the instructions
below to clear the data:

The motherboard provides one jumper for you to set the computer’s

function. This section will explain how to change your motherboard’s function
through the use of the jumper.

JBAT1

Keep Data

Clear Data

You can clear CMOS by shorting 2-3 pin while the
system is off. Then return to 1-2 pin position. Avoid
clearing the CMOS while the system is on; it will dam-
age the mainboard.

WARNING!

Jumpers