I have a dz68bc Intel motherboard with the status indicator lights along the bottom. I have been getting the red led indicating a watchdog error prior to the PC loading at all. This issue started after I attempted to change from a Radeon 200 series xfx gpu that is starting to fail, to an Nvidia GeForce 730 gpu. I currently have no access to bios, login, or any crash logs. No bsod occurs either.