Raw BIOS binary named for the P5VDC-MX desktop motherboard, 512 KB, with no firmware version given. A file of this size suits a 4 Mbit flash chip, which boards of this class typically use. The BIN format points to a direct dump that can be written with an EEPROM programmer after the chip is removed or clipped. Because the source and version are unknown, verify the board model printed on the PCB. Keep a copy of the existing chip contents before overwriting it.
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 @biosarchive. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →