Schematic diagram for the Gigabyte GA-P55M-UD2, here the revision 1.0B document, supplied as a PDF of about 1.26 MB. The board pairs the Intel P55 chipset with LGA1156 processors in a micro-ATX layout. Repair work typically uses it to follow power sequencing from standby to the CPU VCore, locate the Super I/O and BIOS chips, and check the values of the regulators feeding the memory. Several revisions of this model circulate, so make sure the PCB marking reads 1.0 before comparing component placement or values.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.