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Preferred heat sink grease

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What are people using for their Power Mac heat sinks? I’m now digging into this part of my collection and wondering what is best to use.

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I just used a wee dab of arctic silver I had leftover from my AMD build on my 4400's 603e—no idea what it's thermals will be, but, I'll follow up if it's immortan mediocre.

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For longevity, Arctic Silver 5 is still my choice.  I'm yet to find it dried up on older builds.  Don't go the conductive stuff

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Arctic Silver takes a tiny bit and works great.  Also you can get a good size container of Cooler Master Ice fusion that also works well.

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How would those new(ish)-fangled carbon thermal pads fair? Could you get a standard size (for today's heat spreaders) and cut them to the small PPC die? Get like 9 for the price of 1?

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603/604 CPUs don't generate much heat.

 

Any cheap heatsink compound made in China found on ebay will do the job perfectly as long as you don't use too much.

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A 233Mhz 604e draws 16-18W.

A 604ev draws 6W at 250Mhz (die shrink).

 

If they get toasty it is because of poor air flow and heat buildup in the case over time (something I never seen in my machines).

 

I use the cheap heatsink compound on CPUs that run 125W or more and they work fine.

 

 

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I appreciate the input. This would be used across the range from 601 to G4. I'll have to check out this Arctic Silver stuff.

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