How-toUpdated 2026-07-06 · 11 min read · by RTXsparks Lab
RTX Spark Thermal Throttling: Diagnosis & Fixes
Diagnose and fix thermal throttling on RTX Spark laptops and mini-PCs: firmware, undervolt, repaste, and airflow tuning that actually work.
Diagnosis
`nvidia-smi dmon -s pucm`.
Frequently asked questions
Warranty risk?
Undervolt: no. Repaste: OEM-dependent.