I wasn't sure where to post this. The problem started with the computer not posting/booting. The lights, fans, optical drive, and HDDs power on, but nothing comes on to the display. I've tried 2 monitors, 2 GPU (onboard and PCIe), 2 power supplies, and eventually another motherboard. Is this indication that the CPU is dead? There's also a possibility that the second motherboard I tried everything on is broken. I got it off of eBay.
Here's my setup:
Here's my setup: