I decided that as a small project I would make a heatsink for my raspberrypi. The Pi can easily hit 800 under load if you OC, and I decided that I would try to reduce that. In the next few weeks I'll make a raspberrypi benchmarking script that also records temperatures.
The whole thing cost me about £8, with more than enough leftovers to make a good 5-6 more.
The heatsink: http://www.amazon.co.uk/45mm-10mm-Heatsink-Dissipate-Cooling/dp/B008OTKRY8/ref=sr_1_3?ie=UTF8&qid=1365346980&sr=8-3&keywords=heatsink+fins
The thermal compound (also semi-adhesive): http://www.amazon.co.uk/Arctic-Cooling-MX-4-Thermal-Compound/dp/B0045JCFLY/ref=sr_1_1?s=computers&ie=UTF8&qid=1365348274&sr=1-1&keywords=thermal+compound
The planning took me about 10 minutes, making sure that the heatsink I cut would be the right size, and then another 10 to saw and apply the heatsink. The CPU/GPU heatsink is 12x12mm (roughly), and the LAN controller's heatsink is 8x8mm. After cutting the heatsinks out with a hacksaw, I applied a small amount of thermal compound to each of the small heatsinks and applied them. The heatsinks fit and now the whole thing will hopefully run a lot cooler, although I have not tested it.
and yes I do have the original model B, of which there are only 10,000.
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