An 8 MB BIOS image named simply pch bios, pointing to an Intel platform that uses a Platform Controller Hub. It does not say which laptop or motherboard it came from. A file of this size normally fits a 64 Mbit SPI chip holding the descriptor, ME and BIOS regions. Because the label is generic, open it in a firmware tool to read the BIOS version strings before flashing. Dump and keep the original chip first, and only write it where the board number has been confirmed.
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 @bios_laptop. 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 →