PC Won't Start
PSU LED check, reseat GPU/RAM, monitor 'no signal' fixes.
Transport vibration often loosens components. Don’t panic, it’s probably just a loose cable.
First, check Known Issues.
What do you see? Find your symptom and jump to the relevant section.
| Symptom | Most likely cause | Go to |
|---|---|---|
| Nothing at all — no lights, no fans | PSU off or unplugged | PSU |
| Motherboard LED on, but no fans spin | Front-panel power button header | PSU |
| Fans spin, screen black / no signal | Monitor plugged into motherboard instead of GPU | Monitor |
| Fans spin briefly, then stop (loop) | RAM not seated | Reseating |
| Beeps on startup | RAM (continuous) or GPU (1 long + 2 short) | Reseating |
| BIOS loads, Windows won’t boot | Boot order or loose drive cable | Power Supply section 3 |
1. Power Supply (PSU)
- Switch: Check the switch on the back of your PSU. Is it set to “I”?
- Cable: Push it in firmly. Try a different outlet (or ask your neighbor to test theirs).
- LED: If the motherboard LED is on, it has power. If not, check the PSU or the cable.
2. Monitor “No Signal”
Fans are spinning, but the screen is black?
- Input: Press the “Source” or “Input” button on your monitor. It might be waiting for HDMI while you are using DisplayPort.
- Cable: Unplug and replug both ends.
- GPU: Did you plug the monitor into the graphics card, or the motherboard? (Classic mistake.)
3. Reseating Components
If the PC beeps or loops on startup:
- Power off. Unplug the power cable.
- RAM: Remove the memory sticks and snap them back in firmly. You must hear the click.
- GPU: Remove the graphics card and put it back. Check the PCIe power cables too.
4. If nothing works
Ask a neighbor to test with their power cable or monitor. If it still fails, find an organizer. We have some spare parts for testing, but we can’t promise miracles.
Still stuck?
- Check Known Issues first -- if it's listed, we already know.
- Post in
#supporton Discord with this info:- Seat number (e.g. Row 4, Seat 12)
- What's broken, one sentence
- What you already tried
- Screenshot or error message
- If no reply in 15 minutes, come to the organizer desk.