Secure compute device housing with sensors, and methods and systems for the same

An apparatus, comprising:

• a housing having an interior;
• a first electronic circuit disposed on a first printed circuit board that is disposed within the interior of the housing;
• a second electronic circuit disposed on a second printed circuit board that is disposed within the interior of the housing and different from the first printed circuit board;
• a plurality of sensors separate from and not electrically connected to any of the first electronic circuit and the second electronic circuit, the plurality of sensors disposed within the interior of the housing, the plurality of sensors including a first sensor and a second sensor, the first sensor configured to measure an out-of-band characteristic from a plurality of out-of-band characteristics and of the first electronic circuit and not the second electronic circuit, the second sensor configured to measure an out-of-band characteristic from the plurality of out-of-band characteristics and of the second electronic circuit and not the first electronic circuit;
• and
• a management circuit separate from and not receiving electrical signals from any of the first electronic circuit and the second electronic circuit, the management circuit disposed within the interior of the housing, the management circuit configured to receive from the plurality of sensors a plurality of sensor signals indicating the plurality of out-of-band characteristics of the first electronic circuit, the management circuit configured to send an alarm signal based on the plurality of out-of-band characteristics of the first electronic circuit.

A method, comprising:

• measuring, via a sensor disposed within an interior of a housing, an out-of-band characteristic of a first electronic circuit disposed within the interior of the housing and on a first printed circuit board, the sensor not electrically connected to the first electronic circuit;
• substantially not measuring, via the sensor, an out-of-band characteristic of a second electronic circuit disposed within the interior of the housing and on a second printed circuit board different from the first printed circuit board;
• substantially not receiving, via the sensor, a sensor signal indicating the out-of-band characteristic of the second electronic circuit;
• receiving, from the sensor and at a management circuit disposed within the interior of housing, a sensor signal indicating the out-of-band characteristic of the first electronic circuit;
• analyzing, at the management circuit, the out-of-band characteristic of the first electronic circuit to produce an alarm signal;
• and
• sending, from the management circuit, the alarm signal to initiate a remedial action in response to receiving the alarm signal.