![]() ![]() Every Raspberry Pi comes with a software-set ‘fuse’ in its system-on-chip (SoC) which trips only when two key features are set: One sets the core voltage above recognized-safe levels, the other forces the CPU to run at its maximum speed at all times. You don’t need to worry about your warranty. If you don’t cool the Raspberry Pi 4, you won’t damage it but it will hit its thermal throttle point quickly, negating the point of overclocking it in the first place. ![]() You should also consider third-party cases which include mounts for a larger fan, or the official Raspberry Pi Power-over-Ethernet (PoE) HAT accessory which has its own PCB-mounted fan. Teeny-tiny fans powered by the GPIO header are a good option, especially the Pimoroni Fan Shim. A small passive heatsink, available from almost any Raspberry Pi stockist you care to name, is better than nothing, but adding a fan for active cooling is better still. While it’s not completely necessary, especially if you’re only experimenting, the Raspberry Pi 4 runs hot. ![]()
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