Gigabyte GA-H81M-S desktop motherboard BIOS packed in a 2.76 MB RAR. The name notes the flash chip, a Macronix MX25L3205, a 32 Mbit (4 MB) SPI part, and the ITE IT8620E Super I/O controller fitted to the board. Use it to recover a board with corrupted firmware by programming the chip directly with a CH341A or similar programmer. Back up the original contents first, confirm the PCB revision matches, and verify the image is exactly the chip size before writing so the flash completes cleanly.
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 (9)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 15 Sept 2021 | Open file on RM Schematics |
| @BiosSchematicWorld | 4 Dec 2021 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 25 Apr 2022 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 13 Jul 2025 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 31 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 2026 | 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 →