GA-H81M-S1
GA-H81M-S1 is a Gigabyte main board number. The catalog lists 7 files for it: 2 BIOS files, 3 schematics, 1 boardview and 1 EC firmware image.
Revisions seen in file names: 1.0 and 2.1. The BIOS dumps are 8 MB images. First posted in January 2020 in Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive.
BIOS dumps 2
Schematics 3
Boardviews 1
EC / KBC firmware 1
Board facts
| Board number | GA-H81M-S1 |
|---|---|
| Numbering | Gigabyte board number |
| Revisions | 1.0, 2.1 |
| BIOS chip size | 8 MB |
| Flash chip | MX25L320532XX |
| EC / KBC chip | IT8620E |
| First seen | 2020-01-09 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive |
| About the number | Gigabyte desktop boards are named GA- followed by the chipset and model. |
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Is there a boardview for GA-H81M-S1?
Yes, 1 boardview file.
What BIOS chip size does GA-H81M-S1 use?
The BIOS images for GA-H81M-S1 are 8 MB. Flash chips named in the files: MX25L320532XX.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.