Schematic for a G41M01 board with the design code 6KS2H, saved as a PDF of about 1.05 MB. No brand is given, though the code style resembles ECS design numbering; check the title block to confirm. The G41 part refers to Intel's G41 chipset. Use it to follow standby and core power, locate regulators, and check signals around the chipset, memory slots and BIOS chip. Compare the design code and revision on the PCB with the document before relying on component values.
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 @Datalvela_servicios. 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.