🚀 go-pugleaf

Adam (adam@zoo.co.uk) wrote:
: Can anyone please tell me where I can obtain a big heatsink for my
: Pentium 233MMX processor in the UK?
: I am currently running the processor at 250Mhz using a standard Cyrix
: type heatsink/fan combo and have tried it at 292Mhz for a short time.
: At 292Mhz though, the CPU starts overheating after approximately 2
: minutes of use.  This is at the voltage setting of 2.8v.  I know it's
: pushing the limits a bit of the CPU, but until it starts overheating
: the system runs fine at the higher speed.

: Any advice would be greatly appreciated.

I don't know about large heatsinks, but have you considered using a Peltier
device to cool the CPU _below_ ambient temperature.

The Peltier device is a semiconductor which acts rather like an electronic
fridge. It extracts heat from one surface and outputs it on another surface
and are used in a variety of applications from infra-red detectors to the
12V "cool boxes" that are used in cars and boats.

If you mount a Peltier device between the CPU and the heatsink it could cool
the CPU and allow more consistant running at higher speeds. Obviously you
would also need a large heatsink on the "hot" side of the device. This will
not only have to dissipate the heat from the CPU but also the heat
dissipated by the Peltier device which will consume a significant amount of
power, could be several 10's of watts.

Alternatively you could fabricate a water cooled heatsink. Now that would be
novel, although I believe that certain large super-computers use water
cooling too.

Geoff
-- 
--
     Geoff  Blake	   geoff@palaemon.demon.co.uk	     linux 2.0.29
      Chelmsford	      g8gnz@g8gnz.ampr.org               i586
      Intel create faster processors - Microsoft create slower processes