On Mon, Apr 09, 2001 at 14:01 +0000, Declan Moriarty wrote:
>
> As a hardware guy, let me say that the main heat sensitive device is
> the cpu. PCMCIA stuff uses no current worth talking of, hence no heat is
> generated. Other heat sources are battery, and power supply. What should happen
> is that the cpu is heat protected, and will slow down, then cut out in time to
> save itself, which will mess up the interrupts on a thinkpad. If something else
> is heating up big time, or showing heat sensitive behaviour, it's faulty :-{
Generally speaking you are quite right. But I don't get any errors in
any processes running, which would be the case if the cpu gets too
hot or shuts down. It's just that the networking gets shaky (first 10
or 20% packet loss then 40 to 90%). During that time all other
processes run without probs.
The other test I made was: When the time came and networking began to
falter I removed the pcmcia card and stuck it back in after one hour.
After that networking ran perfect for some time then faltered again.
I removed the card, let it cool down, stuck it in again and
everything worked again.
So you say the card may be faulty. Fine. I'll try to turn it in at
the shop but I have not much hope. THey'll put it into a notebook,
test it and say that it's the fault of my notebook...
> Try a session running from mains psu with the battery removed (It can
> get hot if overcharged) and the case open; it's usually enough to remove the
> keyboard. Make sure it is on a flat surface (not a bed!) and that the fan
> works. See how it lasts then. If there's a metal plate covering the cpu, paint
> it black. That alone may cure it! Matt Black heatsinks run cooler than any other
> colour, strange as it may seem.
As I said, everything else is running perfectly so it can't be the
cpu getting too hot.
Thanks anyway.
wobo
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