Critical temperature reached, shutting down

[Gene Heskett]

On Wednesday 19 May 2004 13:14, Mark Neidorff wrote:
>I got that.  Isn't the likely cause of the fan not starting
> accumulated dirt in the fan itself?  In other words, isn't it a
> hardware and not a software issue?
>
Speaking as a CET, it *should* be hardware.  Now if as a power saver 
method, the maker has the fan on a thermostat so the cpu has to get 
warm before it starts, then obviously there is a design flaw in the 
heat flow path to that thermostat.  In any event, if the fan isn't 
replaceable with a more or less std, readily obtainable fan, and it 
doesn't coast freely when given a spin with a finger, then its time 
to yell at the vendor. If it coasts with difficulty, but can be seen 
to be notching, as in it has several fixed resting points it sort of 
bounces into, this is normal for these types of brushless fan motors.  
What I would suspect is that the lubricant in the fan may have dried 
out, turning into a black gummy, parafine like mess, which has to get 
hot before the motor has the moxie to spin it up.  Sometimes they can 
be cleaned up and re-oiled with a drop of 5W-20 to run for another 
month or so, but its a dead horse in the long run, so if thats the 
case, get it replaced, its cheap insurance against a failed cpu.

The cpu is taking the correct action if it thinks its overheating 
since even 1 second at a temp above its failure point will  be 
exactly that, total, or near total failure.

>On Wed, 19 May 2004, Matthew Miller wrote:
>> On Wed, May 19, 2004 at 05:02:58PM +0000, Mark Neidorff wrote:
>> > Its a good thing that the system shuts down when it overheats. 
>> > Why would you want to change that behavior? (BTW, have you
>> > opened the case, taken
>>
>> I think the behavior he wants to change is the fan not starting.
>> :)
>
>--
>If you don't pay your exorcist you get repossessed.

-- 
Cheers, Gene
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