MS-7820 – MSI H81-P33
The MS-7820 (MSI) motherboard is found in the MSI H81-P33 and MSI MS-782. 4 files are indexed for this board: 1 BIOS file, 2 schematics and 1 boardview.
Revisions seen in file names: 2.1 and 1.0. The BIOS dumps are 8 MB images. First posted in February 2023 in Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive.
BIOS dumps 1
Schematics 2
Boardviews 1
Board facts
| Board number | MS-7820 |
|---|---|
| Designed by | MSI |
| Platform group | MS-7 |
| Revisions | 2.1, 1.0 |
| BIOS chip size | 8 MB |
| First seen | 2023-02-15 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive |
| 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-7820
- MSI H81-P33
- MSI MS-782
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
Who designed the MS-7820 board?
MS-7820 is an MSI board number.
Which laptops use the MS-7820 board?
Files in the catalog link MS-7820 to the MSI H81-P33 and MSI MS-782.
Is there a boardview for MS-7820?
Yes, 1 boardview file in .bdv and .cad format.
What BIOS chip size does MS-7820 use?
The BIOS images for MS-7820 are 8 MB.
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.