03 / PHYSICAL MENTAL MODEL
Meet the hardware.
See the part. Understand its job. Follow the connections before blaming the universe.
ILLUSTRATIVE RACK
A teaching model, not a Cheyenne equipment inventory.
Select a component in the diagram or the controls.
SELECT A COMPONENT
COMPONENT 02
Compute node
An independently managed compute machine with CPUs, memory, storage, and sometimes GPUs. A rack can hold many nodes.
A technician checks
Confirm the asset ID, rack position, affected node, and work authorization.
“The rack is broken” is a location report. We still require a diagnosis.
FOLLOW THE PATH
Everything is connected. Trace it.
Trace energy toward the load.
UPS / distribution
Upstream infrastructure supports continuity. Only authorized personnel work on electrical equipment.
QUICK MENTAL CHECK · NOT SCORED