MS-7846 – MSI H81M-P33
MS-7846 is the MSI main board used in the MSI H81M-P33, MSI B85M-E33, MSI B85M-E35 and MSI B85M-P32. 26 files are indexed for this board: 14 BIOS files, 6 schematics and 6 boardviews.
Revisions seen in file names: 2.1, 1.0, 3.0, 5.0, 1.1 and 2.0. The BIOS dumps are 8 MB and 16 MB images. The earliest file dates from February 2021 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 14
Schematics 6
Boardviews 6
Board facts
| Board number | MS-7846 |
|---|---|
| Designed by | MSI |
| Platform group | MS-7 |
| Revisions | 2.1, 1.0, 3.0, 5.0, 1.1, 2.0 |
| BIOS chip size | 8 MB, 16 MB |
| First seen | 2021-02-22 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | MSI board numbers start with MS-: MS-1xxxx for notebooks, MS-7xxx for desktop boards (also used in HP, Lenovo and other OEM PCs), MS-Vxxx for graphics cards. |
Laptops that use MS-7846
- MSI H81M-P33
- MSI B85M-E33
- MSI B85M-E35
- MSI B85M-P32
- MSI B85M-P33
- MSI H81M-E32
- MSI H81M-E35
- MSI H81M-P33 H81M-E33
- MSI H81M PRO-VD
- MSI H87M-E35
- MSI H87M-P32
- MSI H97M-E35
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 |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .cad | .cad boardview | FlexBV, OpenBoardView or BoardViewer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
What BIOS chip size does MS-7846 use?
The BIOS images for MS-7846 are 8 MB and 16 MB.
Who designed the MS-7846 board?
MS-7846 is an MSI board number.
Is there a boardview for MS-7846?
Yes, 6 boardview files in .bdv and .cad format.
Which laptops use the MS-7846 board?
Files in the catalog link MS-7846 to the MSI H81M-P33, MSI B85M-E33, MSI B85M-E35, MSI B85M-P32, MSI B85M-P33, MSI H81M-E32, MSI H81M-E35, MSI H81M-P33 H81M-E33, MSI H81M PRO-VD, MSI H87M-E35 and 2 more.
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.