A schematic diagram. Shared as “ABIT AN52 [nForce MCP68] SocketAM2 v.0.1 [bd, cd].pdf” — a .pdf file, 1.43 MB.
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 @abgm_manutencao_esquemas. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)