Overheating

Summary

These tickets cover systems or components running abnormally hot at idle or under load, causing throttling, noise, instability, shutdowns, or hardware faults. The pattern spans GPUs, CPUs, DIMMs, VRMs, storage, and whole-system airflow problems, with root causes ranging from failed fans or coolers to chassis design limits and incorrect component choices.

Frequency

• 112 tickets

Common Causes

1. Insufficient airflow or poor chassis thermal design
   Many cases improved only after restoring airflow with lids on, stronger intake fans, shrouds, different chassis layouts, or corrected fan curves. Examples: #13541, #16213, #17888, #21990, #6046, and 18 more.
2. Failed or degraded cooling hardware
   Common failures include dead GPU fans, bad CPU coolers, stuck fan modules, fan-sensor faults, or fans blocked by debris or cable issues. Examples: #24926, #2625, #3172, #35458, #40625, and 16 more.
3. Component-specific degradation under heat
   Some overheating tickets were really aging GPUs, DIMMs, or motherboard areas that became unstable once temperature rose. Examples: #20230, #26585, #32382, #4636, #8062, and 14 more.
4. Platform settings or firmware contributing to excess heat
   Several systems ran too hot because of aggressive BIOS defaults, bad fan policy, sensor issues, or incorrect power behavior. Examples: #11674, #12207, #15257, #26999, #39463, and 10 more.
5. Environmental or deployment factors
   Rack conditions, removed chassis panels or fans, room heat, passive-GPU use, and customer modifications sometimes made otherwise valid hardware run too hot. Examples: #18159, #18167, #20800, #29351, #8781, and 9 more.

Diagnostic Steps

1. Confirm what is overheating and when
   Separate CPU, GPU, DIMM, VRM, or storage thermals, and note whether the problem appears at idle, on boot, or only under heavy jobs. Representative tickets: #11222, #15719, #21147, #28964, #39389.
2. Collect sensor and event data before changing parts
   Review nvidia-smi, ipmitool sensor, ipmitool sel elist, BMC dashboards, BIOS readings, and workload-triggered logs to identify the hottest subsystem. Representative tickets: #11674, #17213, #26999, #30037, #35390.
3. Inspect airflow and fan behavior physically
   Verify fan RPM, obstructions, cooler contact, dust, shrouds, cable routing, lid position, and whether all intended fans are actually spinning. Representative tickets: #12274, #13541, #14586, #35458, #40625.
4. Use isolation tests to decide part vs position
   Swap cards, slots, or CPUs when safe, reduce workload scope, and compare behavior across channels or sockets to see whether heat follows the part or the location. Representative tickets: #15719, #19879, #28606, #31426, #32382.
5. Move to RMA when heat is reproducible or physically evident
   Once telemetry or inspection shows repeat overheating, failed cooling, or shutdowns, many tickets converge faster through depot repair. Representative tickets: #12107, #17213, #24597, #30369, #39512.

Solutions

1. Restore or upgrade airflow
   The most common durable fix was adding or replacing fans, restoring proper chassis configuration, adding shrouds, or moving hardware into a better-ventilated enclosure. Examples: #11674, #12274, #16213, #17888, #19651, and 15 more.
2. Replace the failed cooling component
   CPU coolers, GPU fans, overheated GPUs, and fan assemblies were often replaced once the bad part was isolated. Examples: #24926, #2625, #3172, #3491, #40135.
3. RMA the whole system when the thermal fault is systemic
   Whole-system return was common when overheating involved multiple subsystems, repeat failures, or unclear platform faults. Examples: #12107, #17213, #21990, #30369, #39389, and 20 more.
4. Adjust firmware, fan policy, or power behavior
   Some systems stabilized after BIOS updates, max-fan settings, resetting bad BMC state, or correcting power-related thermal behavior. Examples: #12207, #15257, #26999, #35390, #40485.
5. Validate with the real workload after repair
   Burn-in, mprime, GPU burn, RELION, or customer application testing was often necessary because idle thermals alone did not prove the fix. Examples: #11674, #17888, #25312, #26458, #6046.

Edge Cases

• Memory or VRM overheating masquerading as generic instability: several tickets began as crashes or DIMM errors before depot testing proved airflow-starved memory or VRM zones. See #12476, #16213, #17888, #25312, #4636.
• Thermal issue caused by incompatible component choice: one major case required replacing active-cooled A6000 GPUs with passive A40s because chassis airflow conflicted with the GPU cooling design. See #21990.
• Storage overheating instead of CPU or GPU heat: overheating drive trays or hot-room M.2 deployment produced failures that initially looked like broader system instability. See #23677, #29351.
• Some reported overheating was within safe range or not reproducible: not every hot-reading ticket justified replacement, especially when telemetry stayed within expected limits or depot tests passed. See #25791, #27412, #42667.

Related Issues

• CPU Cooler Failure
• Fan Speed Issues
• GPU Jobs Crash Node Poweroff
• GPU Hardware Failure
• BIOS BMC Issues
• Power Supply Failure
• Defective Storage Drives

Referenced by

• RTX A4000 — product affected by this issue (×2)
• GPU Jobs Crash Node Poweroff — co-occurs with this issue (×5)
• Rtx A6000 — product affected by this issue (×9)
• Power Distribution Board Failure — related issue (×2)
• H100 — product affected by this issue (×6)
• A100 — product affected by this issue (×4)
• Jason Chen — handled tickets on this issue (×14)
• CPU Cooler Failure — co-occurs with this issue (×6)
• RTX 6000 Ada — product affected by this issue (×2)
• David — handled tickets on this issue (×5)