These share power delivery, clockgen, and I/O pinouts. You can trace differences via datasheets for:
Often hosts user-uploaded manuals and PDF layouts for older hardware. BadCaps Forums foxconn n15235 motherboard schematic
LGA 775 supporting Core 2 Quad, Core 2 Duo, and Pentium CPUs. Memory: Dual-channel DDR2 up to 4GB. These share power delivery, clockgen, and I/O pinouts