MS-16881 – MSI CX620
The MSI CX620 and MSI CX620MX are built on the MS-16881 board. 9 files are indexed for this board: 3 BIOS files, 6 schematics and 2 EC firmware images.
Revisions seen in file names: 1.1 and 2.0. The BIOS dumps are 4 MB and 64 MB images. First posted in August 2018 in Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive.
BIOS dumps 3
Schematics 6
From the uploader
Model: MSI CX620 (MS-1688)
Platform: MS-16881
Rev: 1.1
Dumps: Main & EC
Main Flash: Macronix MX25L3205D (SPI_SOCK3)
EC Flash: Macronix MX25L512 (U37
Model: MSI CX620MX ( MS-1688)
Motherboard : MS-16881 Rev 2.0
HM55 chipset, Ati HD545V
Bios 4mb + EC 64kb
Board facts
| Board number | MS-16881 |
|---|---|
| Designed by | MSI |
| Platform group | MS-1688 |
| Revisions | 1.1, 2.0 |
| BIOS chip size | 4 MB, 64 MB |
| Flash chip | MX25L3205D, MX25L512 |
| First seen | 2018-08-04 |
| 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-16881
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.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .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
What BIOS chip size does MS-16881 use?
The BIOS images for MS-16881 are 4 MB and 64 MB. Flash chips named in the files: MX25L3205D and MX25L512.
Who designed the MS-16881 board?
MS-16881 is an MSI board number.
Which laptops use the MS-16881 board?
Files in the catalog link MS-16881 to the MSI CX620 and MSI CX620MX.
Is there a boardview for MS-16881?
No boardview has been indexed for MS-16881 yet; the schematic is available on this page.
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.