BIOS file named for the X453MA, an ASUS notebook model, delivered in a 2.53 MB RAR archive; the AS suffix is not explained and may simply mark the source. No board number or revision is given, so cross-check against the motherboard label. Such images help recover laptops stuck on a black screen or failing to POST after a bad update, by writing the chip with an external SPI programmer. Read the original contents first and keep them, and ensure the extracted image matches the capacity of the flash chip.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →