Update your Z170 non-K OC BIOS with a flash.
Update your Z170 non-K OC BIOS with a flash.
This video demonstrates a process or concept related to the topic.
The flash utility should already be present on your motherboard. You can transfer the archive onto a USB drive and start the utility via BIOS, choosing the USB file. If your board lacks this tool, you'll need to obtain suitable flashing software from the manufacturer and install it through your operating system. Refer to the official website and user guide for detailed steps.
Format your hard drive to fat32, insert the BIOS USB, restart and boot from it. Use the built-in flash tool on the board. Avoid Windows for BIOS updates—Windows crashes can lead to serious issues.
It appears to be an A40 file. I wouldn't suggest using BIOS updates from third parties, since it seems the motherboard likely uses a single BIOS configuration.