Archive for the M4A88TD-V EVO desktop motherboard, packed as RAR and about 396 KB in size. Beyond the model name nothing about the contents is given, so expect repair documentation such as a boardview or schematic set rather than a firmware image, which would usually be larger. Material of this kind is used to trace supply rails, check for shorts on power lines and locate parts by reference designator. Unpack it with WinRAR or 7-Zip and verify the board revision on the PCB against the files before working from them.
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 @boardview. 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.