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C850 PLF PLR CSF CSR UMA MB Rev2.1 4MB BIOS

BIOS Added: Dec 12, 2019 RAR · 2.6 MB

File details

TypeBIOS
Revision2.1
FormatRAR
Size2.6 MB
BIOS chip size4 MB
AddedDecember 12, 2019
Updated
Original file nameC850_PLF PLR CSF CSR UMA MB Rev2.1 4MB.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.

AwesomeHeader does not store this file. It was published in a public Telegram channel; the links above lead to the original post and its copies.

Description

BIOS dump, revision 2.1, supplied for a 4 MB flash chip as a RAR archive of about 2.6 MB. The original file name is C850_PLF PLR CSF CSR UMA MB Rev2.1 4MB.rar, which suggests a motherboard revision 2.1 entry with the 4 MB chip size, but the brand, model and board number are not given in the listing. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update.

Description generated from the catalog data. ·

How to open it

A BIOS dump is written to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and save the original chip contents twice before writing.

Guide: Flash a Laptop BIOS with a CH341A Programmer →

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: C850 PLF PLR CSF CSR UMA MB Rev2.1 4MB. 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.

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