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Not all computer troubleshooting can be handled within your operating system or by troubleshooting specific components. Some key computer functions are governed by the CMOS (Complementary Metal-Oxide-Semiconductor), a chip on your motherboard powered by a small battery. The CMOS governs things like the system time and date, which are controlled by the BIOS (Basic Input/Output System)….

Check out the original article: [Slashgear]How To Clear Your Computer’s CMOS