Symptoms
My Apex Console or Apex Processor will randomly shut itself off, sometimes not power up, or will reboot while shutting down or powering up.
Explanation
The Apex Console and Processor use different types of power supplies, and there's a switch on the motherboard set for one or the other that can potentially be bumped into an incorrect position causing the power management circuit to get indeterminate information, thus causing intermittent power control, mysterious shut downs, or not power up at all.