My first cooling solution is a low-tech, couple of small 1/2" strips of
wood approximately 7 - 8" long and a 1/4" thick. I've put a couple of
self-sticking, adhesive silicon nipples... hmm... perhaps, I had better
re-phrase that... on each end to protect the underside of the 2400. A
couple of globs of silicon would work just as well. Not a heat sink, but
something to allow airflow under the machine.
In addition to using these desktop strips, I'm running 8.6 and have just
started using a a higher-tech solution of the JustCooler PCMCIA card fan.
Originally, there was a problem allowing this PCMCIA card fan to mount as
the system was seeing it as a 6 Gb unformatted HD and wanted to initialize
it. A good fellow (thanks) posted a work-around on O'Grady's site which
suggested you first launch Powerlogix's freeware utility application,
Speedmeter v1.03. By launching this utility application first, it would
fool the system into allowing PCMICIA card to mount and start the card fan,
then allowing you to quit Speedmeter. Additional good news, you can put
the Powerbook to sleep and it will awake and run the fan without having to
go through the Speedmeter procedure. It was $24 US. (I have no personal or
business involvement with the company, URL available off O'Grady's page.)
Currently, my 2400c's internal temperature is down to�132� F (56�C). This
is a stabilized, temperature reading after 3-4 hours and being continually
connected to the internet with a Global Village v90 PCMCIA modem. Previous
to Sytem 8.6 and the card fan, the 2400c would run upwards 154� F.
The card fan's attached fan enclosure sticks 2 1/2" out of the back of the
Powerbook. The 2" filtered fan pulls cooling air into the vented card
inside the PowerBook and runs with only a soft whir. Simple, elegant and if
you don't mind the pun... cool! As it is thicker on the extended top of
the fan end, it has to reside in the top slot only if you require the
simultaneous use of another card. Fortunately, both of my Dayna 10-T
ethernet Communicard and the aforementioned GV modem card have connectors
which are no thicker than the cards themselves. This allows the use of
either of those cards in conjunction with the JustCooler card fan.
The manual eject button is used to release the card fan as it doesn't
appear as a mounted volume on the desktop. No matter, as all it does is run
the cooling fan. If you crash with it mounted or forget to eject before
restarting/shut� down, you have to use the tried-and-true paperclip eject.
(Only had to use it once.)
The computer base when sitting on my lap is now just warm to the touch and
not uncomfortable to use. I would conservatively estimate this PCMCIA
JustCooler card fan has lowered my internal operating temperature a further
5 - 7� F. I guess the only downside for some will be that 2400 Powerbooks
can no longer be relied on as a form of "HOT" birth control. I will still
get a LapBottom from Eric @ Dr. BottLC to allow for the additional air
movement while using in lap mode and the overall convenience of how it
cradles the 2400.
I have no idea how the use of this card impacts battery life.
My 2400c is a standard issue CPU - 603e, 180 Mhz version. It has an
upgraded 3.1 Gb drive and 80Mb of RAM.
Now, if Arnie over at MCE could/would just get that 32-bit cardbus issue
enabled/resolved.
Cheers,
Rod
>I have just reading about people using slabs of marble and the such to keep
>their 2400 cool. It occurred to me that those aluminium plates used to
>defrost food would do the job better and be lightweight.
>
>Well here I am after a days work and my machine is 4C cooler than it would
>be otherwise. My machine typically tops out at 72C and today never got past
>68C, My all time record high temperature is 77C.
>
>Before having the plate, the top of my desk used to get uncomfortably hot
>from the 2400.
>
>The plate I am using is the same depth as the 2400 and is only 10 cm wider.
>It could easily be cut to the machines exact width.
>
>Check it out at your local hardware store.
>----------
------------------------
Rod Duncan
[EMAIL PROTECTED]
----------
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