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Chapter 2 Hardware Installation
CN32: Clear CMOS Header
The onboard button cell battery powers the CMOS RAM. It contains all the BIOS setup
information. Keep the jumper connected to pins 1-2 (Default) to retain the RTC data as
shown below.
Under certain circumstances, you will need to reset system settings. Follow these
instructions to clear the CMOS RTC data:
1. Turn off the computer.
2. Short pins 2 and 3 with a jumper for a few seconds.
3. Replace the jumper to pins 1 and 2.
4. Turn on your computer by pressing the power-on button.
5. Hold down <F2> during boot and select either <Load Optimal Defaults> or
<Load Failsafe Defaults> in the “Exit” section. Then go through the BIOS setup
to re-enter user preferences. Refer to Chapter 2 BIOS SETUP for more
information.
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Hardware Installation 2-3
1-2 2-3
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2
3
Normal (Default) Clear CMOS