Raspoootin
Posts: 12
Joined: Mon Apr 01, 2013 3:10 am

Heatsinks Really Needed?

Mon Apr 22, 2013 11:42 pm

Has there been shown an actual need for heatsinks on a RPi?
I'm having trouble believing that the chips on an RPi actually do get
hot enough to really require a heat sink.

After all, if the people that designed the RPi thinks it needed heatsinks
then they would have been supplied with, right?

I think it's kool. And I'm gonna add some heatsinks - they look great
even if not absolutely needed.

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Burngate
Posts: 5972
Joined: Thu Sep 29, 2011 4:34 pm
Location: Berkshire UK Tralfamadore
Contact: Website

Re: Heatsinks Really Needed?

Tue Apr 23, 2013 9:16 am

Raspoootin wrote:Has there been shown an actual need for heatsinks on a RPi?
No, for most situations. In fact the word from on high, and most people's experience, is that there is no need

The rest of what you say is correct. The chips don't get hot enough, the designers don't think they're necessary, and they look Kool

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rpdom
Posts: 15019
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: Heatsinks Really Needed?

Tue Apr 23, 2013 2:25 pm

Unless operating in extreme conditions, no heatsink is needed.

Some people say "But the chip is *hot* when I touch it". Yes, it will feel hot. It's warmer than your finger.

To put it in perspective, my Pi's CPU rarely gets above 50 degrees C. My old Pentium-4M laptop idles at 47C, and the cooling fan cuts in at around 58C. The system reckons that the maximum usable temperature for the Pentium is 119C!

Try putting your finger on the heatsink of an x86 processor. That'll feel quite hot too, and that's a large lump of aluminium or copper with a big fan.

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