Re: Lombard overheating?

[Peter Saint James]

	As I understand it, despite being called "laptops," they want to run 
on hard surfaces.  To quote the manual to my Aluminum PB:

	"Do not place your PowerBook on a pillow or other soft material when 
it is on, as the material may block the airflow vents, in particular 
the rear vents, and cause the computer to overheat."

	I also gather that the bottom of the computer gets warm and the heat 
can't escape when on such a soft surface.

	Anything one can do to help the computer run cooler is virtuous and 
leads to longer life for it.  One solution might be to customize a 
laptop stand to use on the bed, giving a little air space between the 
laptop and the cloth surface.
			
	Peter


On 8 Mar2005, at 10:37 PM, alienbill wrote:
Normally I hardly hear the fan on my 333mhz Lombard, but sometimes 
after
using it for awhile on my lap or bed the fan suddenly gets louder and 
warm
air is pushed out the left side. This has not yet happened while using 
it
on a desk. At first I'd panic and shut down as soon as possible. When I
grew tired of this I started keeping it on but moving it onto a desk.
Normally the exhaust fan then stops after a few minutes.

I suppose this is the computer's way of cooling itself when getting too
hot? My question is, is this a normal thing I can ignore, or is it a
warning to shut down for awhile?

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Re: Lombard overheating?

[alienbill]

Bruce Johnson said at ÒRe: Lombard overheating?Ó.
[09/Mar/2005 10:45]
> ...This is normal, but if it's
> annoying, use a lapboard or some other hard surface to set the laptop
> on instead of directly on the bed or your lap.


Thanks Bruce. I was mostly worried that I was damaging the processor or
something. Will still try go minimize getting to the point that it gets
that hot, but at least now I won't panic about it.

bill

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Re: Lombard overheating?

[Bruce Johnson]

On Mar 8, 2005, at 8:37 PM, alienbill wrote:
Normally I hardly hear the fan on my 333mhz Lombard, but sometimes 
after
using it for awhile on my lap or bed the fan suddenly gets louder and 
warm
air is pushed out the left side. This has not yet happened while using 
it
on a desk. At first I'd panic and shut down as soon as possible. When I
grew tired of this I started keeping it on but moving it onto a desk.
Normally the exhaust fan then stops after a few minutes.
Blankets are insulators. That's why we use 'em. On  hard surface the 
laptops feet keep it off the surface to allow air underneath, thus 
keeping it cool without needing the fan.

The blanket (or your lap) allows the system to sink in and be 
insulated, removing a lot of the normal convective cooling, so the 
thermostat kicks in and the fan comes on. This is normal, but if it's 
annoying, use a lapboard or some other hard surface to set the laptop 
on instead of directly on the bed or your lap.

--
Bruce Johnson
University of Arizona
College of Phar acy
Information Technology Group
Institutions do not have opinions, merely customs
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Re: Lombard overheating?

[Malcolm Cornelius]

> Normally I hardly hear the fan on my 333mhz Lombard, but sometimes after
> using it for awhile on my lap or bed the fan suddenly gets louder and warm
> air is pushed out the left side. This has not yet happened while using it
> on a desk. At first I'd panic and shut down as soon as possible. When I
> grew tired of this I started keeping it on but moving it onto a desk.
> Normally the exhaust fan then stops after a few minutes.
> 
> I suppose this is the computer's way of cooling itself when getting too
> hot? My question is, is this a normal thing I can ignore, or is it a
> warning to shut down for awhile?

Sounds like exactly what I'd expect it to do - if it gets warm, the fan
comes on - something like bedding isn't a cooling surface, so I'd expect it
to come on more often than on a desk.

-- 
Best wishes

Malcolm Cornelius - The Powerbook Fanatic
http://www.pbfanatic.co.uk




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Re: Lombard overheating?

[Nathan Templeton]

> Normally I hardly hear the fan on my 333mhz Lombard, but sometimes after
> using it for awhile on my lap or bed the fan suddenly gets louder and warm
> air is pushed out the left side. This has not yet happened while using it
> on a desk. At first I'd panic and shut down as soon as possible. When I
> grew tired of this I started keeping it on but moving it onto a desk.
> Normally the exhaust fan then stops after a few minutes.
>
> I suppose this is the computer's way of cooling itself when getting too
> hot? My question is, is this a normal thing I can ignore, or is it a
> warning to shut down for awhile?
>
> Thanks for any information.
>
> bill
>


Having the same issue with my Wallstreet/250. I've also noticed since I
have had this laptop, that at times with prolonged use on my bed or lap I'll
start to get shadowing on the lcd..
For now I shut it down and let it cool. But being this is my only
computer for awhile.. That can't be the longterm fix.. Would getting one of
those laptop coolers that go underneath help the situation at all?

-tia
-nathan

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Lombard overheating?

[alienbill]

Normally I hardly hear the fan on my 333mhz Lombard, but sometimes after 
using it for awhile on my lap or bed the fan suddenly gets louder and warm 
air is pushed out the left side. This has not yet happened while using it 
on a desk. At first I'd panic and shut down as soon as possible. When I 
grew tired of this I started keeping it on but moving it onto a desk. 
Normally the exhaust fan then stops after a few minutes.

I suppose this is the computer's way of cooling itself when getting too 
hot? My question is, is this a normal thing I can ignore, or is it a 
warning to shut down for awhile?

Thanks for any information.

bill

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