Every Sephora Systems build goes through rigorous cable management before leaving our workshop. It's not vanity — it's engineering. Here's why it matters and what we look for.
Airflow Is Everything
A PC case is a carefully designed airflow system. Intake fans at the front pull cool air across components; exhaust fans push hot air out the back and top. Cables running across the main chamber disrupt this flow. A build with poor cable management can run 5–10°C hotter than the same components managed properly.
In Nigerian ambient temperatures of 30–40°C, 10°C can be the difference between stable performance and thermal throttling.
Fully Modular PSU Makes This Easier
A fully modular PSU lets you attach only the cables you need. A build with an RTX 4070 doesn't need the extra PCIe connectors for a second GPU — those cables stay in the bag. Less cable = less obstruction = better airflow.
The Cable Management Checklist
- 24-pin ATX power connector routed through the motherboard tray cutout, not across the front
- PCIe power cables to GPU run along the bottom or side channels, not across the GPU face
- SATA data cables anchored with velcro ties or included case clips
- All cables behind the motherboard tray wherever possible
- No cables blocking front intake fans
Troubleshooting Gets Easier
A well-managed build is faster to diagnose and repair. When a component needs to be reseated or replaced, you're working with clearly routed cables rather than a tangle. This matters for our engineers when you bring a system in for service — and it matters for you if you ever add new components yourself.
What We Do at Sephora Systems
Every build we ship includes full cable management as standard. We route all cables through case channels, bundle with velcro ties, and do a final airflow test before packaging. You'll see clean, professional work when you open your case — and you'll feel the difference in temperatures.