Use a professional hot-air rework station with a focused nozzle. Set your temperature profile conservatively (typically between 330°C to 360°C for lead-free solder profiles found on modern motherboards) to prevent adjacent underfilled chips from popping solder balls.
The name or sub-model number you are working on. k19s-mb-v5
Use a ruler to measure the slot where the paper sits. It will almost certainly be either 58mm or 80mm. Check for "Thermal": Use a professional hot-air rework station with a
Engineering validation testing (EVT) and early retail units. Often susceptible to minor power rail vulnerabilities. Use a ruler to measure the slot where the paper sits
Inject low voltage (e.g., 1V–2V) into the shorted rail and use a thermal camera to spot hot spots.
Manages over-voltage protection (OVP) and buck-boosting to ensure fast, safe current intake without overheating the multi-layered board structure. 2. RF and Connectivity Traces