If you own a computer with a Gigabyte motherboard and the machine is having memory-related errors or boot errors, or if you have forgotten the BIOS Supervisor password, you must clear the CMOS (Complementary Metal-Oxide Semiconductor) to reset the settings to factory defaults. After clearing the BIOS, you can then use the setup menu to make needed changes and set boot devices. The CMOS is type of non-volatile memory used to store settings for the system BIOS. When you clear the CMOS, all custom settings in the BIOS are lost and factory defaults restored.
Instructions
Clearing CMOS on Gigabyte Motherboards without CMOS Jumpers
1. Shut down the computer, then unplug the power cord and other cables. Lay the PC on its side so that you can access the side-panel cover.
2. Use the Phillips screwdriver to loosen and remove the screws on the back of the case used to attach the side-panel cover to the chassis. Remove the cover from the case.
3. Find the two primary CMOS solder points on the motherboard labeled "CLRTC." On most Gigabyte motherboards, the solder points are near the white PCI slots.
4. Lay the flathead screwdriver across the two solder points to short the connection between the two. Press and hold the screwdriver to the two solder points for about 10 seconds.
5. Replace the case side-panel cover, then plug in the power cord and other cables. Restart the computer, then press the "Delete" key when you see the initial boot screen. Enter the system BIOS and re-enter your user preferences.
Clearing CMOS on Gigabyte Motherboards with Jumpers
6. Turn off the computer. Disconnect the power cord and other cables. Remove the retaining screws to open the side-cover access panel.
7. Find the jumper set on the Gigabyte motherboard labeled "CLRCMOS1" or "CLRBIOS." The jumper cap covers and shorts pins P1 and P2 by default.
8. Remove the jumper cap from pins P1 and P2 on the motherboard. Place the jumper cap on pins P2 and P3 and leave it there for at least 10 seconds. Remove the jumper cap and place it back on pins P2 and P3.
9. Close the computer case, then plug in all the cables. Restart the computer, then press the "Delete" key when the computer starts to boot. Re-enter BIOS settings and user preferences and restart the computer.
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