You really shouldn't have to pop the battery. There's always a jumper right by your bios. It'll be labeled "Clear CMOS" or something simular. Move that jumper over, power on your 'puter, turn power off and reset the jumper. All your settings are back to the default. And your clock is WAY off.
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ARTacus
Putting the dis in disparaging, the cause in caustic, the dance in mordancy, and unfortunately the tire in satire.