Secondary EPROM dump for the Dell Studio 1558, model number PP39L, marked as 100 percent working. At 1.00 MB it is the smaller of two chips on this board, separate from the 4 MB main BIOS image, and likely holds embedded controller or auxiliary firmware. Problems in this chip can cause no power, fan or charging issues. Program it with an SPI programmer only after reading out the existing contents, and confirm the chip location and capacity on your board match the 1 MB image.
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 →