Quick Answer

For LAN-party prep, buy good case fans now rather than later: a set of three 120mm fans like the Arctic P12 costs around R600 total and drops load temperatures by 5-10C, which matters when a packed PC runs hard for hours away from home. Spend the R600 up front instead of fighting thermal throttling at the venue.

Why fans are a buy-now item for LANs

A LAN rig gets transported, stacked near other machines, and run flat-out for a full day. Stock or worn fans let the GPU and CPU climb past 80C, and once a card hits its thermal limit it quietly drops clocks, costing you frames mid-match. Three quality 120mm intake and exhaust fans moving 50-60 CFM each keep the case 5-10C cooler under load, cheap insurance against losing a R15,000 GPU's frames to throttling.

There is also a noise angle. LAN venues are loud, but a fan screaming at 2,000 RPM still adds to fatigue. A good fan hitting its airflow target at 1,200-1,400 RPM stays under 30 dB(A), so you are not the loudest box on the table.

Buy now vs upgrade later

Upgrading later makes sense only if your current fans already hold temps under load. If you see throttling, dust-clogged blades, or bearing rattle, replace them before the event. A travel-pack checklist helps: spare fan, cable ties, a small screwdriver, and a can of compressed air for last-minute cleaning.

FAQ

How many case fans do I need for a LAN rig?

Three 120mm fans (two intake, one exhaust) is a solid baseline, giving slightly positive pressure to limit dust. Add a top exhaust if you run a hot GPU.

What CFM and noise should I aim for?

Target around 50-60 CFM per 120mm fan at under 30 dB(A) near 1,200-1,400 RPM. The Arctic P12 and similar models hit this for roughly R200 each.

Should I upgrade fans before or after the event?

Before. Replacing fans the night before risks an untested setup, so swap and test at least a few days ahead so you can confirm temps under a real gaming load.

TIP

travel kit: one spare 120mm fan, cable ties, a screwdriver and compressed air. Test your cooling under load a few days before the LAN, not the night before.