Windows PC Turns On But No Display (Fix It Now)
⚠️ Immediate Fix
Fans spinning but screen black? This is a "No POST" error. Unplug the power cable. Hold the power button for 30 seconds to drain static. If that fails, the RAM is likely unseated. Open it up, remove the RAM sticks, wipe the contacts, and click them back in.
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Why This Happens
- RAM Oxidation: Memory contacts are dirty.
- Static Buildup: Capacitors preventing boot.
- GPU Unseated: Graphics card dropped loose.
Step-by-Step Fix
- Power Drain (Soft Reset): Unplug power cord (and battery if laptop). Hold power button for 30 seconds. Plug back in and try. This fixes 50% of black screens.
- Reseat RAM: Unclip the RAM sticks. Clean the gold edge with a pencil eraser. Push them back in until you hear a loud CLICK.
- Reseat GPU: If you have a dedicated card, unscrew it and push it firmly back into the PCIe slot.
- CMOS Reset: Remove the silver coin battery on the motherboard for 5 minutes. Put it back. This resets the BIOS settings.
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When to Stop
Listen for beeps. If your motherboard beeps 3 or 4 times, it is telling you exactly what is wrong (RAM or Timer error). If it is silent and won't boot after RAM reseat, the motherboard or PSU is dead.