VRM is crucial to CPU and GPU getting clean power supplies. ... It is known that VRM for a CPU measures around 80°C- 100°C without cooling. For a GPU, the VRM's temperature often increases up to 120°C. The whole idea of a VRM is to provide CPU and GPU with a reliable, efficient power source.

Does VRM affect temperature?

Lowering vrm temps can lower CPU temps drastically but indirectly. When vrm's get hot they become less efficient , on auto voltage settings mode voltage will be passed through to maintain CPU stability. This raises vrm temps more & also raises CPU temps.

Does VRM need cooling?

If your not overclocking you can go without vrm heatsyncs, but for high end cpus or overclocking motherboards, they are a very good to have feature. Hyper 212 fans are higher above the vrms but they may help a little. For a locked midrange cpu you should be fine without a ton of cooling.