BIOS image for the Chaintech CT-6A desktop motherboard, an older board judging by the compact 238 KB RAR archive. The name gives no version or revision, so verify the model printed on the PCB before use. A file of this kind is written into the BIOS chip with a programmer when the board refuses to post or the firmware has been corrupted. Older boards may use parallel or small serial flash chips, so check chip type and capacity, and read the original contents for backup first.
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 →