[DISCUSSION] Fans/Heatsinks/CPU Cooling Mods

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User avatar
trygame901
Posts: 22
Joined: Wed Jun 01, 2016 6:11 am

Fri Jun 24, 2016 8:25 pm

I wanted to use the heat plate so the HSF would have a solid base. With it directly on top of the die I was afraid that the surface area would be too small and the HSF might move. If you see in the picture its really close to a lot of solder points.

For now I have it connected to CN2 and always on. The next step would be to use pwm for fan control. I think it's currently at 4800rpm.

User avatar
cyphergenetics
Posts: 17
Joined: Mon May 30, 2016 2:58 am

Sat Jun 25, 2016 9:39 pm

Lolol 90c.. Watch my post and i suggest you go remove that heatspreader metal thing that came with panda https://www.facebook.com/groups/LattePa ... 004883916/ .. That useless thermal pad inbetween the thermal spreader is the cause of your problems. Mine is at 30c and highest thermal degree is at 50c running at 1800mhz on stress test.

User avatar
Boring
Posts: 88
Joined: Sat Apr 16, 2016 7:14 pm

Sun Jun 26, 2016 3:02 am

Sorry I do not have Facebook. Can you explain here in more detail what you did and what are your results?

User avatar
seipekm
Posts: 4
Joined: Tue Apr 26, 2016 12:47 pm

Sun Jun 26, 2016 7:28 am

FrancescoR wrote:Hi, a question: thermally conductive adhesive tape is double sided sticky?

now i had see that it is double sided adhesive: http://www.kerafol.com/en/thermal-manag ... bebaender/
yes with double sided sticky

User avatar
LattePanda
Site Admin
Posts: 2717
Joined: Wed Jan 20, 2016 9:09 am

Mon Jun 27, 2016 8:27 am

we have had some luck with these, theyre also nice and low profile

https://item.taobao.com/item.htm?spm=a1 ... o=pcqq.c2c

i have also added this link to the resource list

unfortunately theyre not low profile enough to fit comfortably in the case, unless you hack a section out of it. we are working on a redesign of the case to accomodate for this.

before we got these i basically just had my engineering prototype unit stood off the ground on some m3 screws. i then got a 50mm 5v fan connected to cn2 header pins blowing on the underside, where the cpu is located. the fan is mounted on one of these "leg" screws. not exactly an elegant solution, but its been left on day and night and hasnt died yet. the fan actually stays on as long as power is connected, even if the board hasnt booted!

cheers.
Enjoy Tinkering with LattePanda ! :lol:

User avatar
LattePanda
Site Admin
Posts: 2717
Joined: Wed Jan 20, 2016 9:09 am

Mon Jun 27, 2016 10:31 am

we have been using these

https://item.taobao.com/item.htm?spm=a1 ... o=pcqq.c2c

will work on cn2 headers, although bear in mind that as long as power is connected the fan will be on, even if your panda is off!
also bear in mind the fan will be fixed speed and does not have a signal input

if someone has the time and inclination you could probably create an arduino sketch to address this...

cheers!
Enjoy Tinkering with LattePanda ! :lol:

User avatar
Digioso
Posts: 31
Joined: Mon Jun 06, 2016 10:47 am

Mon Jun 27, 2016 11:41 am

I'm also thinking of buying one case.

How many "Abstandsbolzen" of each type are needed? Four each?
And where have you connected the fans to on the LP? Can it support two fans?

User avatar
schluej
Posts: 75
Joined: Sun May 01, 2016 7:19 pm

Mon Jun 27, 2016 7:50 pm

lattepanda wrote:we have had some luck with these, theyre also nice and low profile

https://item.taobao.com/item.htm?spm=a1 ... o=pcqq.c2c

i have also added this link to the resource list

unfortunately theyre not low profile enough to fit comfortably in the case, unless you hack a section out of it. we are working on a redesign of the case to accomodate for this.

before we got these i basically just had my engineering prototype unit stood off the ground on some m3 screws. i then got a 50mm 5v fan connected to cn2 header pins blowing on the underside, where the cpu is located. the fan is mounted on one of these "leg" screws. not exactly an elegant solution, but its been left on day and night and hasnt died yet. the fan actually stays on as long as power is connected, even if the board hasnt booted!

cheers.
Moin Moin,
the fan works very nice, and keep the system nice cool. So that you can operate at full load with out to clock down the cpu.
With the plywood you can cut out the plywood to get space for the fan.
The Feeds in the corner will give the needed space...
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Live long and prosper!
Joern

User avatar
Rolf
Posts: 14
Joined: Mon Jun 27, 2016 8:44 pm

Mon Jun 27, 2016 9:00 pm

Hi, I have installed a similar but a little smaller heatsink with an attached fan (5 Volt attached to the CN2 connector) using double sided adhesive thermal conducting tape to the metal housing on the bottom side of the Lattepanda where the CPU is installed under.
Fotos of it I have posted on the german Lattepanda forum. Here is a direct link to the pictures:
https://www.einplatinencomputer.net/Att ... -oben-jpg/
The fan i bought at the german conrad.de electronic component company:
https://www.conrad.de/de/axialluefter-5 ... 16709.html
At conrad-electronic.co.uk a similar heatsink-cooler is available (I am not sure if the fan is driven by 5 Volts though):
http://www.conrad-electronic.co.uk/ce/e ... ionarea=01

The installed heatsink/fan keeps my Lattepanda always at reasonable temperatures (<60°C)

User avatar
LattePanda
Site Admin
Posts: 2717
Joined: Wed Jan 20, 2016 9:09 am

Tue Jun 28, 2016 2:55 am

we have been using these https://item.taobao.com/item.htm?spm=a1 ... o=pcqq.c2c
they have been working pretty well. as described in previous posts, remove the heat spreader from the underside of the board and use some thermal tape (we have used 3M) to stick it on. runs nice and quiet too.

I have added a link to the fan in the resources list and I will make this topic a sticky so others can see it immediately and i dont have to keep repeating this!!!

cheers.
Enjoy Tinkering with LattePanda ! :lol:

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