Raspberry Pi Forums

Shachi wrote:Does the Raspberry Pi 3 Ethernet have Ipv4 and Ipv6 support?

Shachi wrote:Does the Raspberry Pi 3 Ethernet have Ipv4 and Ipv6 support?

runboy93 wrote: You don't need fan for passive cooling case.

Passive cooling option is best for pretty low power RPi 3.

http://m.gearbest.com/raspberry-pi/pp_400625.html

Cheapest and IMO best passive cooling case so far, just remember use sandpaper or something to clean paint from the cooling surfaces, because that "paint" may effect just a little cooling performance.

I recommend to use Arctic cooling thermal pads, best quality and price, use 0.5mm thin.

If you are going to use wifi, buy official usb dongle for wifi, aluminum case reduce wifi power.

Paint or Anodized surface? If its Anodized I'd let it be. IMHO, using sand paper, unless its a very very fine grit, on an alrady nice smooth surface is just going to make things worse not better.

I sanded down the 3 contacts to the chips to remove the gray paint. I used 80, 220, and 320 grit sandpaper. It only took a few minutes to do. With a dab of Arctic Silver, the fit is perfect.

2017-06-13 update -- I discovered that the chip on the underside of the RPI3B doesn't touch the case when using thermal grease. The case is roughly 1 mm away and won't make contact with the chip. I suggest this workaround -- use thermal tape there instead. I hope the manufacturer modifies his CNC machine to correct this.

The bad:
1) There are no thermal pads provided with this case. If you want decent heat transfer, you'll need a decent pad. I have some pad materiel so this was not a big deal for me but it may be for you. If you want this case after reading the full review look at something like Artic's Silicone based one sold elsewhere on Amazon, thicker would be good.

2) Like almost all aluminum heat sink cases, this one painted the heat transfer pads. If you took physics, you would know that and additional boundary layer for efficient heat transfer is not a good idea. Again, a little time with a file I already owned and some sandpaper and it was plenty shiny.

The good:
1) The heat transfer was better than anything I've tested so far, though I've not found that many passive cooling cases and won't shell out close to $75 to get one of the Wicked Aluminum cases. I've attached a graph of how this case's temperature rises while running "stress" on all four CPUs.
2) The case is rock solid once assembled. Some of the cases I've tried felt like they were not going to hold together very long, this one is solid.
3) NO FAN - I wanted something that could transcode 1080p video for Kodi and run all the emulators in RetroPie, that puts a lot of load on the CPU and that means heat. With most other sub $10 cases the CPU would get throttled as it hit its thermal limits which meant that the video and games stutter and lag. Other people elect for fans on their RPis but I find fan hum really annoying. This case uses the entire case as its heat sink so that fans are not needed.

The Meh:
1) Having spent 15 years working on international standards, I can say that USB and Ethernet are designed to survive shorts. People do all kids of bad things to interface cables (shut them in drawers, close doors on them, drop heavy metal stuff on them) and the people who design the standards make it so that once you remove the short things will still be functioning. While it might be possible to disable a port while it was in the case, if it was permanently fried that would be on the RPi designers not the case guys. That said, I put thick tape under inside the case to test this with a known bad board I have, the only thing that dimpled the tape were the connector shield legs and no signal leads. As the connector faces short the shell to the case at their openings I can't see this mattering. Someone may have permanently killed ports while using this case, but, it would not have been the case's fault.
2) You can't see the LEDs once the case is in place. There is a slot very close to the LEDs that looks like maybe someone thought it might allow you to see the LEDs but they missed in the placement and the best you can see vague light through the slot only if the room is very dark.
3) I have no idea how the WiFi works. Some people have said metal cases attenuate the signals severely for the RPi 3's onboard WiFi, I doubt it would kill it completely. There are holes in the case and its mating faces are not gasketted to seal well enough to close out everything. It probably drops the signal somewhat but probably also allows it to work OK. In my case, I use wired Ethernet so I can ensure the bandwidth is there.
4) There is no way you can safely use the mounting holes on the bottom of the case. Even a slim pan head screw would short out the real electronics on bottom of the RPi and this would do permanent damage no doubt. Obviously someone clueless added the cut outs, or someone was having a joke.

DougieLawson wrote:

Shachi wrote:Does the Raspberry Pi 3 Ethernet have Ipv4 and Ipv6 support?

The question should be "Does the Linux kernel support IPv4 & IPv6?" and the answer is "Yes, it has done for nearly twenty years".

jamesh wrote:

Shachi wrote:Does the Raspberry Pi 3 Ethernet have Ipv4 and Ipv6 support?

Yes. Please don't thread Hijack - start a new thread if you have a new question.

runboy93 wrote: You don't need fan for passive cooling case.

Passive cooling option is best for pretty low power RPi 3.

http://m.gearbest.com/raspberry-pi/pp_400625.html

Cheapest and IMO best passive cooling case so far, just remember use sandpaper or something to clean paint from the cooling surfaces, because that "paint" may effect just a little cooling performance.

I recommend to use Arctic cooling thermal pads, best quality and price, use 0.5mm thin.

If you are going to use wifi, buy official usb dongle for wifi, aluminum case reduce wifi power.