Build Better Drivers: Using a Video Card Detector for GPU Troubleshooting

Free Video Card Detector Utilities to Diagnose GPU Issues

Tool	What it finds	Key diagnostic features
GPU-Z	GPU model, VRAM, clocks, BIOS	Sensor logging, GPU load test, VBIOS backup, portable
HWiNFO	Full hardware inventory incl. GPU	Real-time sensors, detailed reports, logging, alerts
GPU Caps Viewer	GPU capabilities, driver/API support	OpenGL/Vulkan/CL info, stress tests, extension lists
GPU Shark	Quick GPU snapshot (companion to GPU Caps)	Lightweight GPU info and sensor readout
nvidia-smi (Linux/Windows for NVIDIA)	NVIDIA GPU state and processes	GPU utilization, memory, process kill, driver info

Run the detection tool to confirm GPU model, driver version, and VRAM.
Check sensor readings (temperature, fan speed, voltages) while idle and under load.
Run a GPU stress or load test (GPU-Z/GPU Caps Viewer) for short intervals (2–5 min) and watch temps and clocks.
Compare driver version against vendor site; update or roll back if driver-related issues appear.
Use logging (HWiNFO/GPU-Z) to capture a problem session for later analysis or support.
For NVIDIA-specific problems, use nvidia-smi to list processes using the GPU and free memory.

No GPU detected: reseat card, check PCIe power cables, try another slot, verify BIOS settings (iGPU vs discrete).
High temps/throttling: clean fans/filters, reapply thermal paste, improve case airflow.
Driver crashes/artifacts: clean install drivers with DDU, try older stable driver.
Low performance: confirm GPU is used by apps (check GPU utilization), ensure correct power profile and PCIe link speed.

If you want, I can create step-by-step instructions for one specific tool and your OS — I’ll assume Windows if you don’t specify.