Archive for a Dell OptiPlex 9010 in small form factor, with the name noting it as tested and working. The 5.69 MB RAR most likely holds a BIOS flash dump, though the contents should be confirmed after extraction. Dumps like this are written to the SPI chip with a programmer to recover a desktop that will not POST or has a corrupted firmware region. Read and keep the original chip first, since Dell stores service tag data there, and match the image size to the chip.
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 @hrtechno. 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.
7-ZipWinRARThe Unarchiver (macOS)