Lenovo NM-B451 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Board number | NM-B451 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 5 MB |
| BIOS chip size | 8 MB |
| Added | May 31, 2025 |
| Updated | |
| Original file name | LENOVO_EG521EG522EZ511EG721_NM_B451_REV_1_0_2017_06_26_8MB_BIOS.rar |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
No other copies are known yet.
Description
LENOVO EG521EG522EZ511EG721 NM-B451 REV 1.0 2017-06-26 8MB BIOS BIOS dump for the Lenovo NM-B451 laptop board, made by Compal, PCB revision 1.0, supplied for an 8 MB flash chip in a RAR archive of about 5 MB. The original file name lists the EG521, EG522, EZ511 and EG721 model codes, so check your machine against that list. Technicians use a dump like this to reprogram the SPI chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision match yours, and read and save the original chip contents as a backup.
The catalog also lists 3 schematics, 3 boardview files, and 7 BIOS dumps for board NM-B451.
Description generated from the catalog data. ·
Related files
Browse more
Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: Lenovo NM-B451. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.