depending on the motherboard, there may be a jumper you can remove to avoid having to take out the batt. But if you dont know where the jumper is you can take the battery out for 30seconds to clear the bios. Make sure the computer is unplugged and you've grounded yourself before touching the motherboard. A good idea if you have a switch on the back of your computer for the power supply is to switch the power supply off and touch the powersupply casing to remove any static charge. If you dont have a switch for the PS, just touch a faucet head or something that's grounded.
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