jack-pi
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Cooling Ram + CPU

Sun Jun 03, 2012 8:55 am

Would it be possible cool the ram and CPU of the raspberry Pi?
If you did add heatsinks to the pi, wouldyou be a ble to apply thermal paste??

Thanks :D

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mxcum167
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Re: Cooling Ram + CPU

Sun Jun 03, 2012 11:56 am

Have a search through the Forums. It has been discussed on here before and I think most of the more knowledgeable members believe it is not necessary as the RPi is designed to run 'hot'. Although there has been some debate as to what is 'hot'.

Have a look at this post, page 1 shows some neatly installed heatsinks if you decide that you want to use them.
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dom
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Re: Cooling Ram + CPU

Sun Jun 03, 2012 12:33 pm

So far no one has demonstrated an improvement from fitting heatsinks (and we wouldn't predict one).
So, by all means fit one, but this will be for your benefit rather than the Pi's.

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Burngate
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Re: Cooling Ram + CPU

Tue Jun 05, 2012 11:17 am

From everything I've seen, cooling the USP chip would be more beneficial. It seems to run hotter than the SoC

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abishur
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Re: Cooling Ram + CPU

Tue Jun 05, 2012 3:06 pm

In this thread here (That's a link) I attached heatsinks with thermal tape, and I provide links and the part information for the heatsinks I chose. Now I'm overclocking it, and it's sitting next to a major heat source (my receiver) so in my instance I feel like I have a definitive improvement improvement to the stability of my system. That said a) it might be that the system itself is more stable and has nothing to do with my heatsinks and b) my situation is somewhat unique in terms of it being a high heat area and most people won't run into this situation.
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AlArenal
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Re: Cooling Ram + CPU

Sun Jun 10, 2012 12:33 am

It doesn't make sense to attach a heatsink to something that doesn't get too warm. If it ain't broke, don't fix it.

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Burngate
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Re: Cooling Ram + CPU

Sun Jun 10, 2012 8:31 am

AlArenal wrote: .... If it ain't broke, don't fix it.
That's the engineer's code.
The hacker's code is "If it's working fix it till it's broke"

normal
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Re: Cooling Ram + CPU

Sun Jun 10, 2012 9:51 pm

I learned it as "If it ain't broke, fix it til it is."

I don't care if it's just a placebo, I don't want to take any chances, it's not like there's any harm in it right? :)

Is there any good RAM heatsinks on amazon that could substitue what you bought, abishur?

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Re: Cooling Ram + CPU

Mon Jun 11, 2012 12:12 am

AlArenal wrote:It doesn't make sense to attach a heatsink to something that doesn't get too warm. If it ain't broke, don't fix it.
My computer engineer's code is "if it gets hot, it won't last: heat is not your friend". (Exception: if your product's environment is below freezing, you may need to let it warm up a bit.) In RasPi's case, it depends on how hot the components actually get.

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Re: Cooling Ram + CPU

Mon Jun 11, 2012 5:23 am

normal wrote:Is there any good RAM heatsinks on amazon that could substitue what you bought, abishur?
While I'm in the it's-not-necessary camp, also look at MOSFET heatsinks.

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Re: Cooling Ram + CPU

Mon Jun 11, 2012 8:52 am

The SoC has been tested in ovens. Without a heatsink. It passed.
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Re: Cooling Ram + CPU

Mon Jun 11, 2012 9:20 am

I saw a 'raspberry pi' heatsink on ebay at £4.50 ish. They are sold as bios or small gpu elsewhere on ebay for £2.50 ish, for a pack of 8! Clever thinking that man, but I'm suprised that he's had 3 sales - aren't we all tinkerers and hackers at the moment?

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Re: Cooling Ram + CPU

Mon Jun 11, 2012 11:00 am

Crook wrote:I saw a 'raspberry pi' heatsink on ebay at £4.50 ish. They are sold as bios or small gpu elsewhere on ebay for £2.50 ish, for a pack of 8!
I guess you'll always find people willing to buy snake oil... :(

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Re: Cooling Ram + CPU

Mon Jun 11, 2012 10:13 pm

Hazor wrote:
normal wrote:Is there any good RAM heatsinks on amazon that could substitue what you bought, abishur?
While I'm in the it's-not-necessary camp, also look at MOSFET heatsinks.
Thanks for the suggestion but i bought a case adn these look too tall.

Anyway if the soc is so safe even overclocked at 900mhz then at what temperature will it actually start to fall apart?

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Re: Cooling Ram + CPU

Tue Jun 12, 2012 2:04 am

normal wrote:Anyway if the soc is so safe even overclocked at 900mhz then at what temperature will it actually start to fall apart?
Do you remember the end of Terminator2...? :lol:

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Re: Cooling Ram + CPU

Tue Jun 12, 2012 3:12 am

normal wrote:
Is there any good RAM heatsinks on amazon that could substitue what you bought, abishur?
sorry, I missed this question, I couldn't find anything on amazon, but the heat sinks I listed can be bought very cheaply off Farnell/RS and since they're not back ordered I got them within 7 days of the order. It might be possible to use mouser or digikey, just look for an 8x8mm heatsink for the LAN/USB chip and a 10x10 for the SoC, but I did a bit of looking around for them, the price I paid was the best deal I could find short of going to a second hand electronic store and digging around in a giant bin of randomly sized heat sinks (actually, I basically did this too, but couldn't find the right size there)
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Re: Cooling Ram + CPU

Tue Jun 12, 2012 7:51 am

normal wrote:
Hazor wrote:
normal wrote:Is there any good RAM heatsinks on amazon that could substitue what you bought, abishur?
While I'm in the it's-not-necessary camp, also look at MOSFET heatsinks.
Thanks for the suggestion but i bought a case adn these look too tall.

Anyway if the soc is so safe even overclocked at 900mhz then at what temperature will it actually start to fall apart?
We have not seen a failure (i.e, permanent death/overheating) at overclocked and overvolted to 1Ghz. You don't need a heatsink even at that.
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Re: Cooling Ram + CPU

Tue Jun 12, 2012 3:07 pm

jamesh wrote:We have not seen a failure (i.e, permanent death/overheating) at overclocked and overvolted to 1Ghz. You don't need a heatsink even at that.
...in an air-conditioned office? :lol:

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Re: Cooling Ram + CPU

Tue Jun 12, 2012 3:18 pm

AndrewS wrote:
jamesh wrote:We have not seen a failure (i.e, permanent death/overheating) at overclocked and overvolted to 1Ghz. You don't need a heatsink even at that.
...in an air-conditioned office? :lol:
In an oven I believe.
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Re: Cooling Ram + CPU

Tue Jun 12, 2012 3:30 pm

RoastedRaspberries :)
warning: contents may be hot!

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Re: Cooling Ram + CPU

Tue Jun 12, 2012 3:31 pm

jamesh wrote:
AndrewS wrote:
jamesh wrote:We have not seen a failure (i.e, permanent death/overheating) at overclocked and overvolted to 1Ghz. You don't need a heatsink even at that.
...in an air-conditioned office? :lol:
In an oven I believe.
Pft, I bet that oven was in an air conditioned room or near an air conditioned building at least :-P
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Re: Cooling Ram + CPU

Tue Jun 12, 2012 4:42 pm

jamesh wrote:The SoC has been tested in ovens. Without a heatsink. It passed.
Definitely the wrong attitude for this thread JamesH. :lol: :D

I think I need to send you a pretty blue little heatsink to change your mind. Or do you want something more sinister like Black or Red?

Though the SoC runs cool, I can see that there will be environs, like overclockingand high temperatures, that can justify a cooling solution. Cooling the RAM module will draw heat away from the processor. For normal everyday use it is probably not really needed. I have no doubts that when the kids get them they will have heat sinks, fans, lights, colors and just about everything that can be stuck on them including sequines.
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Re: Cooling Ram + CPU

Wed Jun 13, 2012 2:26 am

Lob0426 wrote:I have no doubts that when the kids get them they will have heat sinks, fans, lights, colors and just about everything that can be stuck on them including sequines.
And (raspberry jam) sandwiches? ;)

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Re: Cooling Ram + CPU

Sun Jun 17, 2012 7:55 pm


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Re: Cooling Ram + CPU

Mon Jun 18, 2012 2:22 am

Do people fit heatsinks to their mobile phones too? ;)

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