Route smart, don’t over-tighten
- Use rear channels and grommets; keep cables flat, not bunched.
- Run GPU power straight with gentle bends; avoid blocking front intakes.
- Leave slack near connectors to reduce strain and ease swaps.
Fan layout that works
- Baseline: Two front intake + one rear exhaust. Add top exhaust for hot GPUs/CPUs.
- Positive pressure: Slightly more intake than exhaust helps reduce dust.
- Keep front filters clean; vacuum monthly if you have pets or carpet.
Airflow checks
- Feel for warm pockets near GPU/VRM. If present, add a front fan or raise fan curve.
- Intake temps high? Remove unused drive cages, open front panel vents, or step up fan RPM.
- Bundle excess PSU cables behind the tray or use a PSU shroud.
When to add fans or change cases
If you’re still thermal throttling after cleaning and retiding cables, add a quality 120/140mm intake. For >300W GPUs and overclocked CPUs, prefer cases with mesh fronts and space for 240–360mm radiators or tall air coolers.
Need a prebuilt with sane airflow? See our Best Gaming Computers picks with tested thermals.