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X99HD3-V1.21 16MB BIOS

BIOS Added: Sep 8, 2026 RAR · 4.1 MB

File details

TypeBIOS
FormatRAR
Size4.1 MB
BIOS chip size16 MB
AddedSeptember 8, 2026
Updated
Original file nameX99HD3-V1.21 16MB 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.

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

From the original post:
X99HD3-V1.21 16MB BIOS

BIOS dump for a board identified as X99HD3 in the file name, version V1.21, supplied for a 16 MB flash chip in a RAR archive of about 4.1 MB. The facts do not name the brand, board number or revision, so confirm the exact model against the label on your motherboard before using it. A BIOS dump like this is used to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Back up the original chip contents first, and make sure the board model and revision match yours before writing anything.

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: X99HD3-V1.21 16MB. 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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