NM-A491 BIOS Dump
Part of NM-A491
NM-A491: 2 BIOS files found in the source channels. The board is used in the Lenovo B71-80 and Lenovo IdeaPad 300-17ISK. Board revisions: 1.0.
BIOS files 2
FileSizeRevAddedSource
From the uploader
Lenovo B71-80
NM-A491 rev. 1.0
CPU: SR2EY (Intel Core i5-6200U)
ITE IT8586E FXA
Bios + EC
Laptops that use NM-A491
- Lenovo B71-80
- Lenovo IdeaPad 300-17ISK
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 |
| .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 |