[tlinux-users 00302] Re: Toshiba U300 user new to Ubuntu

[bestonnet]

No, you probably shouldn't be worried (Intel processors (looks like you've got one) throttle down when they get to their maximum design temperature to prevent damage, so you pretty much can't damage them by overheating, merely make the computer run really really slow (I've seen it on someone else's laptop after a fan failure)).

That idle temperature isn't anything to worry about, I've seen the processor of my laptop idle at around that and it's managed to last a few years (the coretemp (which is on the processor die) is the one to look at, the ACPI temperature sensor (on the motherboard) tends to be a bit inaccurate).

Under windows it was probably set up to run the fans faster than was strictly necessary to reduce heat, that's probably why it didn't get as hot under windows.  Not sure how to set the fan speed under Linux but if the hardware is increasing the fan speed as the temperature rises that's probably good enough (if you load the system up you should hear the fan get louder).  There might be a setting in the BIOS though.

If it's not crashing or slowing down you should be able to just treat it as a comfort issue.

--- On Tue, 3/24/09, Mike Ventus <mkve23 at gmail.com> wrote:

> From: Mike Ventus <mkve23 at gmail.com>
> Subject: [tlinux-users 00301]  Toshiba U300 user new to Ubuntu
> To: tlinux-users at ml.toshiba-dme.co.jp
> Date: Tuesday, March 24, 2009, 5:52 PM
> Hey,
> 
> I have just installed Ubuntu 8.10 on my Toshiba U300 last
> week, and am
> noticing that my laptop gets very hot (The palm rests,
> touchpad and the
> keys). This judgement was based upon comparing to my
> previous OS Windows
> Vista where these locations never really got warm at all.
> (Obviously just a
> physical observation)
> 
> Though when i run sensrs i get:
> acpitz-virtual-0
> Adapter: Virtual device
> temp1:       +52.0°C  (crit
> = +104.0°C)
> 
> coretemp-isa-0000
> Adapter: ISA adapter
> Core 0:      +51.0°C  (high =
> +100.0°C, crit = +100.0°C)
> 
> coretemp-isa-0001
> Adapter: ISA adapter
> Core 1:      +52.0°C  (high =
> +100.0°C, crit = +100.0°C)
> 
> Which seems reasonable i suppose.
> 
> Should i be worrying about this heat? Is this idle
> temperature ok?
> 
> Also when i run sensors-detect, the only thing it detects
> is coretemp. How
> can i find out information about my fans? When i run
> acpitool -f i get:
> 
>   Fan            :
> <not available>
> 
> which doesn't look to great...
> 
> Hopefully some of you Linux pro's can shed some light on
> whether i should be
> worried about my fans/heating/cooling.
> 
> Thanks alot,
> Mike
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