Working BIOS for a desktop motherboard identified as IPISB-AB, with LEE 812 and LEE 811 named as compatible variants and marked as tested at one hundred percent. The 2.96 MB RAR archive needs extracting before the image can be loaded into an SPI programmer. IPISB-AB is a board code used on OEM desktop systems, so match the code printed on the PCB, and the exact variant, before flashing. Dump and keep the original chip contents first so you can roll back if the board fails to post.
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 →