Firmware for the Dell Vostro 500 on the Wistron DS2 Intel platform, with Wistron board number 48.4W002.021, in a 722 KB 7z archive. The 48.4xxxx.xxx pattern is the Wistron motherboard numbering format, and the last digits indicate the revision, so compare them with the label on the PCB. This dump is meant for reprogramming the BIOS chip with an external programmer when the machine fails to start. Back up the existing contents before writing and ensure the image size is identical to the flash chip capacity.
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 @biosfiles. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →