MacBook Pro A1286 Motherboard (2011), Does Not Power On, Remaining Parts Available Upon Request

MacBook Pro A1286 motherboard, early 2011 model, i7 processor, does not power on; unsure whether the issue lies with the power button or the motherboard. Processor: Speed: 2.0 GHz, Intel Core i7 (Sandy Bridge) Model: 2635QM, Cores: 4 Bus Speed: 1333 MHz, Cache: 6 MB L3 cache 64-bit: Yes, Turbo Boost: up to 2.9 GHz Graphics Card: AMD Radeon HD 6490M, 256 MB memory Remaining parts available upon request