Re: heatsink -- was [Re: Raspberry Pi 4 is announced]
Unless you're going to overclock it (which I'm not sure is possible,
probably) you don't need a heat sink. It will throttle (reduce speed)
if it gets hot. A heat sink keeps it from overheating so soon so it
can run at full speed longer. If you run cpuminer (to mine Litecoin
or Bitcoin) it will overheat a Pi very quickly and slow down, even
without overclocking, because it's so CPU-intensive. You can run less
threads to run cooler.
What I'd like to see is a massive heat sink that dwarfs the circuit
board and becomes dominant, sort of like with Pentiums, could even
have a fan. You'd mount the heat sink then bolt the Pi to it,
probably with heat sink compound or a heat-conductive washer. The
connectors and wires would go wherever they ended up. There could be
such setups as aftermarket addons.
I don't like that they continue to push the power connector to its
limits instead of going to something else like a coaxial plug like the
Rock64 uses. I'm not sure it it's still a microusb or not. But you
can always power through the GPIO connector.
And this uses _micro_ HDMI connectors, as opposed to the Zero which
uses _mini_ or the earlier Pis which have just a regular HDMI. So if
you have a slew of Pis and Zeros you need 2 adapters for video.
GPIO pinout at https://www.element14.com/community/docs/DOC-92640/l/raspberry-pi-4-model-b-gpio-pinout-with-poe-header?ICID=rpimain-smartpanel-pi4doc
I'm not sure how different it is. The Pi GPIO has gotten to be a
defacto standard that other manufacturers also use. I see there are
still multiple 5 volt and ground pins so they can be paralleled for
more current capability.
I welcome the 4 GB of RAM the most, I use 2 swap files and get tired
of waiting for swapping and unswapping. Hopefully the ethernet is no
longer tied to the USB.
There is a new case and power supply, at least partly for the 2
micro-HDMIs. A Rock64 fits into a Pi case but the power connector is
different so it needs some filing. The cases are sort of a nuisance
because the wires dominate everything and are much heavier.
On 6/28/19, Rick Thomas <rbthomas@pobox.com> wrote:
> So when I buy one of these in a couple of months, do I need to buy the
> heatsink too? Will the heatsink fit into the standard case? If not, is
> there a case that will fit?
>
> And, finally, is there a version of Debian that will run on one of these?
> Or should I just plan on running Raspbian?
>
> Thanks!
> Rick
>
>> On Jun 28, 2019, at 12:32 PM, Alan Corey <alan01346@gmail.com> wrote:
>>
>> No big surprise there. Something about 1500 more on 7/4. I got on
>> the list to get emailed when they get them. Oh well, time to get
>> adapters ordered, and a different power supply. Looks like they built
>> it to bolt a heat sink onto, there's free space around the CPU.
>>
>> The real announcement page:
>> https://www.raspberrypi.org/products/raspberry-pi-4-model-b/
>>
>> On 6/28/19, Mauricio Tavares <raubvogel@gmail.com> wrote:
>>> On Fri, Jun 28, 2019 at 2:57 PM Alan Corey <alan01346@gmail.com> wrote:
>>>>
>>>> Tech specs at Element14
>>>> https://www.element14.com/community/docs/DOC-92643/l/meet-the-new-raspberry-pi-4-model-b-with-technical-specifications?CMP=e-email-ADH-e14-NA-280619-RPITechSpec-H&mkt_tok=eyJpIjoiTldRNE56VTJOVGxqWldabCIsInQiOiIyMllcLzZiS2FQb1NpVWt6Q2pkamNnUTVXSThMTGtISWJMZWVRXC9XQVlOWEFLa3dSMGNIMVA4VGdpWTZTRVlhN0ZZd2t5QysrVFF1Mm80WEpjQmxZVEsya0FyeVRYcTR0Z3pPN3hTMXdzY01UNnVFN0FiTW8zRTBYYzl6SjJESmhsIn0%3D
>>>>
>>>> Up to 4 GB RAM, gigbit ethernet, dual micro-HDMI, dual-band wifi,
>>>> OpenGL ES 1.1, 2.0, 3.0, 2 USB 3.0 ports (+ 2 USB 2.0), Broadcom 2711,
>>>> Quad-core Cortex-A72 64-bit SoC @ 1.5 GHz
>>>>
>>>> Element14 doesn't have them in stock yet but the 4 GB is listed at
>>>> $55. Sounds like a Rock64 killer
>>>>
>>> I think they have been out of stock since Monday. Sold out quickly
>>>
>>>> --
>>>> -------------
>>>> No, I won't call it "climate change", do you have a "reality problem"?
>>>> -
>>>> AB1JX
>>>> Cities are cages built to contain excess people and keep them from
>>>> cluttering up nature.
>>>> Impeach Impeach Impeach Impeach Impeach Impeach Impeach Impeach
>>>>
>>>
>>
>>
>> --
>> -------------
>> No, I won't call it "climate change", do you have a "reality problem"? -
>> AB1JX
>> Cities are cages built to contain excess people and keep them from
>> cluttering up nature.
>> Impeach Impeach Impeach Impeach Impeach Impeach Impeach Impeach
>>
>
>
--
-------------
No, I won't call it "climate change", do you have a "reality problem"? - AB1JX
Cities are cages built to contain excess people and keep them from
cluttering up nature.
Impeach Impeach Impeach Impeach Impeach Impeach Impeach Impeach
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