Larger companion BIOS image for an Acer Aspire E1-571 on the Intel Ivy Bridge platform, SL8JC chipset marking, tagged BIG and stated to be working. The 4 MB binary goes into the main 32 Mbit SPI flash, while the separate 1 MB SMALL file serves the second chip. Write both with a programmer such as CH341A or RT809H when the laptop will not post. Read and store the existing chip contents first, verify after writing, and confirm the chip capacity on the board matches 4 MB before flashing.
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 .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 →