Overview
Customers may notice that xNode2 reports higher operating temperatures than the original xNode. This is expected behavior and does not indicate a problem.
The difference is due to both updated hardware and more accurate temperature measurement. Temperature is shown on the front panel and on the Status Page in the Web UI. It’s also shown in the header bar, so it is visible at all times.
Hardware Differences
The original xNode used a ColdFire® processor, while xNode2 uses a modern NXP i.MX7 ARM® processor with faster DDR3 memory.
The newer platform provides significantly greater processing capability and memory bandwidth, but also consumes more power. Since electrical power is converted into heat, higher operating temperatures are normal for the newer design.
Temperature Measurement Differences
Temperature readings between the two products are not directly comparable:
xNode: Temperature measured by a sensor located on the circuit board.
xNode2: Temperature reported directly from the CPU’s internal (on-die) sensor.
Because xNode2 measures temperature at the processor itself — the primary heat source — reported values will naturally appear higher than board-level measurements from the original xNode.
Normal Operating Range
Based on thermal validation data, normal xNode2 operating temperatures are: 35 °C to 85 °C
The system includes hardware thermal protection, and the processor will automatically shut down at approximately: 100 °C (thermal protection limit)
This safeguard prevents damage to the hardware.
Summary
Higher reported temperatures on xNode2 are normal and result from:
A higher-performance ARM processor replacing the ColdFire platform
Faster DDR3 memory with increased power usage
Direct CPU temperature measurement instead of board-level sensing
No action is required unless the unit reports thermal alarms or experiences operational issues.