Nvidia Gt 540M + Fan always running

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https://bbs.archlinux.org – Hello everyone!I'm quite new to ArchLinux and after installing it, I've been stuck on this issue for almost a week.I'm using an ASUS X53S with Nvidia GeForce GT 540M (and of course, Optimus tech) plus the Intel video card. Since I've installed arch linux, my fan won't stop running; so i thought it would be something heat-related (it was later confirmed by googling it). Using lm_sensor I have coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +63.0 C (high = +86.0 C, crit = +100.0 C) Core 0: +52.0 C (high = +86.0 C, crit = +100.0 C) Core 1: +55.0 C (HowTos)