16891-1 – Lenovo 7000
The Lenovo 7000 and Lenovo ThinkPad E520 15IKB are built on the 16891-1 board designed by Wistron. The catalog lists 3 files for it: 3 BIOS files.
The earliest file dates from December 2023 (BIOS Archive).
BIOS dumps 3
Board facts
| Board number | 16891-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 16XXX |
| Also known as | 448.0CP02.0011 |
| CPU generation | Intel 7th gen |
| First seen | 2023-12-30 |
| Source channels | BIOS Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 16891-1
- Lenovo 7000
- Lenovo ThinkPad E520 15IKB
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.
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
Who designed the 16891-1 board?
16891-1 is a Wistron board number used by Lenovo.
Which laptops use the 16891-1 board?
Files in the catalog link 16891-1 to the Lenovo 7000 and Lenovo ThinkPad E520 15IKB.
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.