Off the bus: It wasn't pcie / oculink... it was the PSU

A user experienced persistent GPU disconnections and OS crashes, with errors occurring after loading a model and passing the first prompt. Initially, they suspected issues with PCIE or oculink connections. However, the problem was ultimately traced to a weak 450w PSU, which, despite being a reputable brand and not powering many other components, was insufficient for the GPU's PCIE power and 12vhpwr requirements. The user shared this discovery to help others facing similar issues.

Unlike typical troubleshooting that focuses on connections, this report highlights a weak 450w PSU as the unexpected cause of GPU disconnections and OS crashes.