Schematic PDF of 1.47 MB for the Dell design labelled IPCML-RN65 DGFX, the discrete graphics variant; no exact laptop model or board number appears in the name. The document helps trace rails, power sequencing, GPU supply circuits and signal paths when a board fails to power on or shows no image. A boardview with the same name accompanies it for physical part locations. Check the identifier printed on the PCB against the name before trusting values, as UMA versions differ.
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 @cynetitsolution. 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.