amenditman Posted August 31, 2014 Share Posted August 31, 2014 I have purchased a Raspberry Pi B+ to play with my 6 year old. Basic programming, hardware hacking, etc. Don't want to use a fan, there are heat sink sets available for next to nothing. Which would be more effective for heat transfer, copper or aluminum? They have different forms for the "fins". and . Quote Link to comment Share on other sites More sharing options...
Capt.Crow Posted August 31, 2014 Share Posted August 31, 2014 Copper has the best heat coefficients 2 Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted August 31, 2014 Share Posted August 31, 2014 The truth about copper heatsinks and aluminum ones - Tom's Hardware Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted August 31, 2014 Share Posted August 31, 2014 On that device, it's not going to make that much difference. It doesn't run that hot. Quote Link to comment Share on other sites More sharing options...
amenditman Posted August 31, 2014 Author Share Posted August 31, 2014 Probably true. Quote Link to comment Share on other sites More sharing options...
lewmur Posted August 31, 2014 Share Posted August 31, 2014 I have purchased a Raspberry Pi B+ to play with my 6 year old. Basic programming, hardware hacking, etc. Don't want to use a fan, there are heat sink sets available for next to nothing. Which would be more effective for heat transfer, copper or aluminum? They have different forms for the "fins". and . The proponents of copper will point to its higher "heat coefficient". But that only refers to how fast the heat spreads within the metal. Copper doesn't transfer it any faster to the air. That is strictly dependent on the surface area. So, you can get more surface area per cost via the cheaper metal. BTW, the Foundation has stated many times that, unless you are running your Pi in a very hot environment, heatsinks are not needed. In an air-conditioned house or apt, they are completely redundant. 1 Quote Link to comment Share on other sites More sharing options...
amenditman Posted August 31, 2014 Author Share Posted August 31, 2014 This one might get to hit the road in an RV and for camping, so $1.95 for aluminum heat sinks seems like nothing. 2 Quote Link to comment Share on other sites More sharing options...
abarbarian Posted September 1, 2014 Share Posted September 1, 2014 This one might get to hit the road in an RV and for camping, so $1.95 for aluminum heat sinks seems like nothing. Have you no old kit around that you can salvage some heatsinks from ? I prefer copper as it looks prettier. Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted September 1, 2014 Share Posted September 1, 2014 Pretty is as pretty does. If copper doesn't move the heat away quickly without having a huge one to spread the heat around, Wouldn't it be better to have a case with lots of air flow, or use a lesser metal one that would actually move the heat away ftom the chip? Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted September 1, 2014 Share Posted September 1, 2014 http://www.raspberrypi.org/forums/viewtopic.php?f=41&t=27763 Quote Link to comment Share on other sites More sharing options...
amenditman Posted September 1, 2014 Author Share Posted September 1, 2014 Seems like spending any more effort/money than $2 on this would be a waste. ARM CPU designed to run with no additional cooler. RAM stacked on top of the CPU with no thermal transfer in the design. Not much point in doing anything more than providing good airflow and keeping things clean. Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted September 1, 2014 Share Posted September 1, 2014 What do you need for that thing, Bob? I have heat sinks out in the shop. I'm sure some hunk of metal out there would serve. Quote Link to comment Share on other sites More sharing options...
amenditman Posted September 1, 2014 Author Share Posted September 1, 2014 What do you need for that thing, Bob? I have heat sinks out in the shop. I'm sure some hunk of metal out there would serve. I thought about hacking something together out of the aluminum/copper heatsink scrap pile, I really did.Thought I would like the small ones better. Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted September 1, 2014 Share Posted September 1, 2014 Well, I have some sinks and raw material out there you can play with. Maybe you can stop by sometime and we'll have a looksee. Quote Link to comment Share on other sites More sharing options...
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