BIOS for the MSI Z270 TOMAHAWK ARCTIC desktop motherboard, MSI model MS-7A68, PCB version 2.0, packed in a RAR archive. MSI marks its boards with MS-7xxx codes printed between the PCIe slots, which is the easiest way to confirm a match. The image can be written to the SPI flash with a programmer when the board will not POST or a BIOS update failed. Back up the existing chip first, since board-specific data such as the MAC address may differ from the dump.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →