I gather the keyboard metal back plate is still the main heat sink/radiator for the Pismo.
The original 6-gig drive is a space-filling 12mm thick, and pretty much occupies all the space available -- presumably conducting heat from the drive case to the keyboard back plate fairly well by conduction/contact, I'd think -- but many replacement drives are the thinner 9mm thickness.
The "green rubbery stuff" sold to conduct heat -- I vaguely recall it's got a lot of metal in it, though it's in the form of a soft green pad with an adhesive side -- might be an appropriate filler for the empty space. It should conduct heat to the keyboard plate, damp vibration, and a few of these wouldn't interfere with air flow around the drive housing assuming that does any good anyhow.
Anyone know about this? The stuff's easily available at electronics supply shops for heat sink use -- I've seen it used in Powerbooks as far back as the 150 and 180 models, stuck on top of chips thick enough to bridge the gap between the heat source and the aluminum plate back of the keyboard.
Anyone done this, know anyone to ask about it, or got an opinion based on either experience, theory or Higher Knowledge?
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