BIOS for the MSI Z77A-G45 GAMING desktop motherboard, model code MS-7752 with hardware version H20, in a 5.18 MB RAR archive. MSI marks its boards with MS-xxxx numbers and a PCB revision, and both should match the sticker or silkscreen on your board. The image can be written to the SPI BIOS chip with an external programmer when the board will not post or a flash update was interrupted. Read and store the original chip first, because it keeps the board's MAC address and other unique data.
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.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 13 Aug 2022 | Open file on RM Schematics |
| @generalbios | 8 Oct 2023 | Open file on RM Schematics |
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 →