Yesterday morning I went to my office and found my PC was not turned on.  Odd, as I NEVER turn it off.  Its a 6 month old custom build.  Even more strange was that it was totally dead with zero lights and zero response from the power switch.  I even tried a different outlet.  I was in a hurry to leave so I quickly ordered a new power supply off Amazon that was delivered this morning.  Hoping for the best, expecting the worst, I swapped it out and it still doesn't turn on.  So far in my diagnosing I've removed the GPU, memory, SSD, unplugged the CPU power and bypassed the power button with zero luck.  My next step is to replace the motherboard (should be here tomorrow morning).  Any other suggestions?