PDF schematic for the IBM design code-named Rome, labelled as revision 3.5, about 1.62 MB. No laptop model or board number is stated in the name, so confirm the target machine by comparing the sheet headers and part references with the PCB. Since a 4.0 revision of the same project is also circulating, check which version your board carries before relying on values. The diagram supports tracing power sequencing, measuring expected rail voltages and finding the part behind a short. Open it with any PDF reader.
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 @cyberlanelectonik. 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.