How did this guy put the heatsink on his rapsberry pi CPU/GPU without it falling off?

[Phokus]

Hey guys,

I saw this picture of a raspberry pi board, and this guy put a ram/gpu heatsink on his raspberry pi cpu. How does he do it without falling off? My raspberry pi is shipping 1st week of november and i'd like to do the same thing. If i just put some of my artic silver on it, will it stay on?

 

[PottedMeat]

thermal epoxy?

double sided thermal tape (more likely)

you can get little strips off ebay for a few bucks - 3M or Sekisui.



edit:

If i just put some of my artic silver on it, will it stay on?

nope, it needs to be anchored with something - heatsink compound won't hold it alone.

 

[Phokus]

thermal epoxy?

double sided thermal tape (more likely)

you can get little strips off ebay for a few bucks - 3M or Sekisui.



edit:


nope, it needs to be anchored with something - heatsink compound won't hold it alone.

Thanks!

 

[dave_the_nerd]

thermal epoxy works well. I've never tried thermal tape. Would probably just research the product and get whichever one has a better conductivity. (The epoxy isn't THAT hard to get off...)

 

[Auric]

Audio cassette case? Is the heatsink covered? Would it not be better to have vent holes?

 

[Phokus]

thermal epoxy works well. I've never tried thermal tape. Would probably just research the product and get whichever one has a better conductivity. (The epoxy isn't THAT hard to get off...)

I was looking at arctic silver's epoxy paste... it says it's not for cpu/gpu's... so i couldn't use it on the raspbery pi's chips?

 

[BrightCandle]

I actually have in a box a very old 2 part epoxy from Arctic Silver which I used for GPU memory heatsinks. Its long ago gone hard but presumably something like it is still available.

 

[dave_the_nerd]

I was looking at arctic silver's epoxy paste... it says it's not for cpu/gpu's... so i couldn't use it on the raspbery pi's chips?

Typically (it's been a while so my info may be outdated.) epoxy isn't as good as normal thermal compound, so you didn't want to use it on CPU/GPUs, since they generated so much heat.

It's also not strong enough to hold up most CPU HSF modules. Especially the copper ones. Those are heavy.

The Pi is way lower TDP than virtually any modern desktop CPU, and should be fine. (Does it even have a heat sink normally?)