Re: Hardware failure: power-off
On Sat, 20 Aug 2011 07:41:36 +0200, Panayiotis Karabassis wrote:
> On 08/19/2011 09:10 PM, Camaleón wrote:
>> Also check the hardware monitor section of the BIOS, if possible, they
>> will give you an accurate measure. You can also check the output of
>> "acpi -V" to find out additional data for trip points (is available).
>>
>> Is it a laptop or a desktop computer?
>
> It's a laptop. I couldn't find a hardware monitor in the BIOS.
Hum, yes, laptops suck for this, I mean, their BIOS are so limited that
look useless :-/
> Also I can't find the 'acpi' command, not even with apt-file.
ACPI is a package. I got it installed on both, desktops and laptops
computers.
http://packages.debian.org/squeeze/acpi
On desktops, "acpi -V" displays little information but on laptops you can
get useful values for CPU temperature, thermal trip points, fans and
battery status. OTOH, lm-sensors can be also an option, as you said
before, but this program has to be first tweaked to get usable and
accurate values.
>> By your explanation, yep, looks like the micro is reaching a high
>> temperature and it shutdowns to avoid damage. Keep the system running
>> with the BIOS screen opened and watch fans speed rotation and system
>> temps... and keep it so for a while to see if it also powers-off.
>
> I opened the laptop and cleaned the fan's airduct. Then the laptop was
> stable for many hours.
>
> But. Before going to sleep, I activated a 3D screensaver. When I woke-up
> the laptop had powered-off again.
>
> When using glxgears, the CPU cores' temperature skyrockets very fast,
> and the fan becomes very noisy.
>
> I missed something, something I didn't clean. Do you think I can resolve
> this on my own (I am abroad), or should I pay a technician when I get
> home?
I would first look for a BIOS update if available, but yes, if you have
no previous experience on laptops cleaning (while this a common task I
always do by myself on desktops/servers is something I never did before
on laptops) I would consider bringing the computer to the service support
so they take a look (consider doing a full backup of your hard disk, just
in case they break something...).
It can be the fan that just needs to be replaced (maybe this is something
you can try yourself) but it also can be the heatsink of the processor,
that needs to be fully cleaned or even replaced with a new one, and this
task can be tricky, depending on your computer brand/model.
Greetings,
--
Camaleón
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