Back when playing with over clocking and looking
for ways to keep cpu's cool I played around with
"heat pipes" and "pelter coolers". Never really saw
either installed on a comercial system until just
recently I bought a cpq T1500 Fanless thin client.
Of coarse first thing was to bust it open and have
a look. It has a Cyrix media GXm 233 Mhz cpu
and for a cpu cooler had a pretty neat "heat pipe"
installed. I just thought that was pretty neat.
So I guess it depends on how much work/fun your
willing to do. You can always buy one of the indoor/outdoor
thermometers with the cord for measuring the outside
temp (under $20) and adapt the tip, to fit in between the cpu and cooler
and do your own benchmarking. ie. high/low temps running
full speed with fan, high/low running under clocked with just
heat sink. Intel should also have spec's for temp ranges
for the chip. I would also think that more cooling than
just a heat sink would be needed.
I've also installed my own fans on heat sinks, smaller
quiter ones than normally come with heat sinks, you
can then also install an in-line resistor lowering the voltage
to the fan, slowing it down. You would be suprised how quite
you can make a fan.
> I want to built a fanless computer to use as a diskless client. Recent AMD
> CPUs are out of the question because of their prodigious heat production. So
> I plan to use an 800Mhz Pentium III underclocked to 400Mhz. Can anyone judge
> whether the CPU would run cool enough at this speed with only a passive heat
> sink to avoid burning up?
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