bobc47
Posts: 5
Joined: Thu Aug 23, 2012 3:06 pm

Heat

Thu Aug 23, 2012 3:10 pm

I should be getting my pi in a week or so (ordered from Newark in early August). I came across this method of heatsinking the chips and thought some might find it interesting.

http://www.michaeldornisch.com/2012/06/ ... -sink.html

Bob
Bob

pulling what little is left of my hair out - again

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RaTTuS
Posts: 10610
Joined: Tue Nov 29, 2011 11:12 am
Location: North West UK
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Re: Heat

Thu Aug 23, 2012 3:25 pm

How To ask Questions :- http://www.catb.org/esr/faqs/smart-questions.html
WARNING - some parts of this post may be erroneous YMMV

1QC43qbL5FySu2Pi51vGqKqxy3UiJgukSX
Covfefe

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Ed Raket
Posts: 164
Joined: Mon Apr 30, 2012 4:28 pm

Re: Heat

Thu Aug 23, 2012 8:48 pm

RaTTuS wrote:http://twitpic.com/a1sogy
http://twitpic.com/agi2kq
my copper ones look better
I just ordered these from ebay... they make the Pi look kind of chique 8-)

ejsolutions
Posts: 96
Joined: Fri Jun 29, 2012 2:27 pm
Location: In the sticks of Haggisland

Re: Heat

Thu Aug 23, 2012 10:16 pm

I got two copper ones from a seller in China (about 10 days to arrive) for the princely sum of £2. :D
They look cool but run pretty hot, so they must be doing something. 8-)
Just need to get around to cutting down a low profile black aluminium heat sink for the LAN enclosure - I've got a few spare ones lying around, so may as well make use of one.

Wendo
Posts: 142
Joined: Sun Jun 10, 2012 8:27 pm

Re: Heat

Fri Aug 24, 2012 8:30 am

The problem with all these heatsink with regards to the broadcom chip is this. You're not connecting the heatsink to the broadcom chip, you're connecting it to the RAM mounted on top of it. I'm doubtful you're doing any meaningful cooling to the broadcom chip.

Of course, the LAN/USB chip gets really hot, and cooling that is probably not a bad idea :)

ejsolutions
Posts: 96
Joined: Fri Jun 29, 2012 2:27 pm
Location: In the sticks of Haggisland

Re: Heat

Fri Aug 24, 2012 12:28 pm

Wendo wrote:... You're not connecting the heatsink to the broadcom chip, you're connecting it to the RAM mounted on top of it. I'm doubtful you're doing any meaningful cooling to the broadcom chip.
I beg to differ, given the proximity of CPU/RAM. Extracting the heat from the RAM must logically cause a temperature differential, for the CPU heat to go some place. Simplistically, the heat from the CPU has to go somewhere: CPU-->heat-->RAM-->heat-->air/cooler.

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Ed Raket
Posts: 164
Joined: Mon Apr 30, 2012 4:28 pm

Re: Heat

Fri Aug 24, 2012 8:47 pm

ejsolutions wrote:
Wendo wrote:... You're not connecting the heatsink to the broadcom chip, you're connecting it to the RAM mounted on top of it. I'm doubtful you're doing any meaningful cooling to the broadcom chip.
I beg to differ, given the proximity of CPU/RAM. Extracting the heat from the RAM must logically cause a temperature differential, for the CPU heat to go some place. Simplistically, the heat from the CPU has to go somewhere: CPU-->heat-->RAM-->heat-->air/cooler.
And if it does'nt..... it still looks kind'a chique ;)

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