Discrete GPU card checklist (desktop) in plain English for NLCRC.
Power first
- External PCIe power plugs seated; 12 V present under load.
- VRM phases: look for burnt chokes, open high-side FETs, or missing controller enables.
Memory / core
- Artifacting or instant driver crash can be VRAM or core VRM ripple — reflow myths will not replace a measured short.
- Test in a known-good PC with minimal other variables.
Display path
- Try both HDMI and DisplayPort; rule out cable/monitor.
- Laptop MXM / soldered GPU is a different workflow — treat as board-level, not a swap-in card.
Post GPU model, PSU wattage, resistance on core/VRAM rails if measured, and whether another card works in the same PC.
Graphics cards
Graphics card: fans spin, no display, driver crash loops
Board: Discrete GPU · 27 views · Solved
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