Quick Answer

To unlock a BIOS-locked motherboard, try the manufacturer's master password tool first, then clear CMOS using the jumper or by removing the coin battery for 5 minutes. If both fail, an authorised service centre can flash unlocked BIOS firmware. Most SA users resolve this in under 30 minutes with a CMOS reset.

The CMOS Reset Method

Power down completely and unplug the PSU. Locate the CLR_CMOS jumper on your motherboard (usually near the coin battery). Move the jumper from pins 1-2 to pins 2-3 for 10 seconds, then back. If your board has no jumper, simply pop out the CR2032 coin battery for 5 minutes. Reseat it, plug in, and boot. This wipes the BIOS password on most consumer boards.

ASUS, Gigabyte, MSI, and ASRock boards all respond to this method on B650, B760, X670, and Z790 chipsets.

When CMOS Reset Doesn't Work

OEM laptops (HP, Dell, Lenovo) and some prebuilt SI boards use EFI-stored passwords that survive battery removal. For these, contact the manufacturer with your serial number and proof of purchase. They'll provide a master unlock key or a service-authorised reset tool.

Avoid downloading random "BIOS unlocker" tools from sketchy forums. Many are malware, and a bad BIOS flash bricks your motherboard permanently.

Common Mistakes to Avoid

Don't short the CMOS pins with a screwdriver while the system is plugged in. Don't remove the battery without unplugging the PSU first. Don't try multiple wrong passwords repeatedly, some BIOS versions lock you out for 24 hours after 3 failed attempts.

If you bought the board second-hand and the previous owner set a password, the seller's responsibility is usually to remove it. Insist on it before completing the deal. New boards from Evetech ship factory-fresh with no passwords, which removes this whole risk for first-hand buyers in SA.

Frequently Asked Questions

Will clearing CMOS lose my BIOS settings?

Yes, completely. You'll need to re-enable XMP/EXPO, fan curves, and boot order. Take photos of your settings before clearing if possible.

Can Evetech unlock a BIOS-locked motherboard?

Yes, our service centre can attempt CMOS reset and OEM master-key flashes for boards purchased from us. A small fee may apply for non-warranty work.

Do I need to remove the GPU to clear CMOS?

Not usually. Just unplug power, locate the jumper or battery, do the reset, and reboot. The GPU stays put.

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