Zipped BIOS image for the HP 640 G3, version 01.27 Rev.A, with the Management Engine region cleaned. A cleaned ME region removes stored configuration so the board can initialise the ME afresh, a common fix for slow boot or fan issues after a chip swap. Unpack and write the image to the SPI flash with a programmer. Keep a dump of the original chip, since serial and product data may need to be re-entered, and confirm that the image size matches the flash chip capacity.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @schematiclaptopramkushwaha. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →