Forum Discussion

Harolder's avatar
Harolder
Brass Contributor
Apr 07, 2026

PC crashes every time i touch the tower, fixes itself when i power it off completely

Every time I even come near the tower, like plugging out a usb cable or accidentally bumping it with my foot, it goes into a black screen, but audio keeps working for a couple seconds before all output dies. Also, the fans keep spinning and all my RGB stays on. Rarely it does this without any contact (maybe dust?)

I have a feeling it's a power issue but i'm not experienced enough to know

Specs:

  • Ryzen 5 5600x
  • RTX 3070
  • 32GB DDR4 3600mhz
  • Asrock B550 Extreme 4
  • Deepcool LE240 AIO (half sure)
  • Fedora Linux 43 (Kernel 6.19.10) or Windows 11 Pro (happens on both)
  • Unsure what PSU i've got, it could hold off a Ryzen 3 2200g and RTX 3070 before i upgraded though

3 Replies

  • Lifeoozne's avatar
    Lifeoozne
    Copper Contributor
    Apr 12, 2026

    From your description, this behavior points strongly to a power delivery or physical connection problem rather than software. The fact that the system loses video/audio output but fans and RGB stay powered suggests the CPU/GPU are losing stable power while low‑draw components continue running.

    Why This Happens

    • Loose PSU connections: Even a small bump can interrupt power if the 24‑pin ATX or 8‑pin CPU cable isn’t fully seated.
    • Weak/failing PSU: RTX 3070 + Ryzen 5600X requires a reliable 650–750W PSU. If your unit is older or low‑quality, it may not handle transient loads.
    • GPU seating: A slightly loose GPU in the PCIe slot can cause black screens when disturbed.
    • Motherboard grounding: If the board isn’t properly mounted on standoffs, case flexing can cause shorts.
    • Dust/static: Less common, but buildup can cause intermittent instability.

    Recommended Steps

    1. Identify PSU model/wattage
      • Check the PSU label. If it’s a generic or low‑rated unit, replacement is advisable.
    2. Reseat all connections
      • Power down, unplug from wall. Reseat the 24‑pin ATX, 8‑pin CPU, GPU PCIe cables, and RAM. Ensure each clicks firmly.
    3. Check GPU and motherboard mounting
      • Verify the GPU is locked into the PCIe slot. Confirm the motherboard is screwed into standoffs, not touching bare case metal.
    4. Test with a known good PSU
      • If possible, swap in a reliable 650–750W unit. If the issue disappears, your PSU is the culprit.
    5. Observe patterns
      • If crashes occur only when bumped, it’s almost certainly a physical connection/PSU issue. If they also happen at idle, PSU instability is even more likely.


    Given your specs, the PSU is the prime suspect. Fans and RGB staying on while the system dies is a classic sign of unstable rails. Start by reseating cables and checking GPU/motherboard mounting, but be prepared to replace the PSU if it’s underpowered or from a non‑reputable brand.