Firmware for the Soltek SL-945P-L desktop motherboard, with 102 in the name most likely marking the BIOS revision, packed in a RAR of 417 KB. Older desktop boards like this keep their BIOS in a removable or soldered flash chip that can be rewritten with a programmer when an update fails or the board stops posting. Read and store the original contents before writing anything, verify the board model on the PCB silkscreen, and make sure the image size fits the chip, otherwise the programmer will report a mismatch.
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 →