Firmware image in .FD format, 4 MB, named H81MS2PH, which points to an H81 chipset desktop motherboard, though the vendor is not stated in the name. FD files are full flash device images in UEFI style and can usually be written straight to a 32 Mbit SPI chip with a hardware programmer. Check the model name on the PCB and the chip capacity before flashing. Keep a dump of the original chip, because it holds the board MAC address and serial data that a generic image lacks.
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 @generalproblemsolved. Enginerys does not host this file.
How to open a .fd file
UEFI flash-device image, typical for Insyde H2O firmware on Acer, HP and Lenovo laptops.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →