Comment by 🚀 RubyMaelstrom
Re: "In your opinion, is 70°C too high for a CPU? I'm running an…"
70C is probably fine for an operating temperature, but for longevity of the hardware the cooler you can keep it, the better.
Maybe take the case off of the router and put a better cooling solution on it if you're feeling tinkery. :)
2025-10-26 · 6 months ago
5 Later Comments ↓
👻 ps [OP] · 2025-10-26 at 15:57:
In fact, the critical temperature is about 120°C or higher; safe values are configured by the hardware drivers. I'm not entirely sure about the capacitors. I'm uncertain about what to do next. I'm using this gadget as an alternative to a power server mainly because it's quite quiet (without fans).
🐙 norayr · 2025-10-27 at 00:14:
i usually run my 3500 mhz cpu at 2000, to prevent heating.
i build everything, but by using one thread and by limiting load average to .5.
what do you run on that machine? can you scale down the cpu? gen rid of python? (:
👻 ps [OP] · 2025-10-27 at 06:02:
@norayr thanks for the tip! This is an ARM device, and I have no idea where the BIOS is. :p I see that at 100% CPU load, it isn't reaching 80°C, so it seems this feature is built-in and works regardless.
🕷 baran · 2025-10-29 at 11:27:
I think for ARM it is absolutely OK
🐙 norayr · 2025-10-31 at 00:53:
ps, i didn't scale down the cpu by using bios, and arm devices don't have bios usually. i did it by linux means.
and no, i keep my intel cpu at about 35-45 celsius so arm should bu even cooler.
Original Post
In your opinion, is 70°C too high for a CPU? I'm running an ARM server (on my router) and won't migrate to more powerful hardware since it would be noisy. Perhaps I can optimize the processes by prioritizing which ones to shut down... but I won't also hibernate some useful services such as radio retransmitter.