jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 27726
Joined: Sat Jul 30, 2011 7:41 pm

The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:23 am

Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

User avatar
CaptainMidnight
Posts: 188
Joined: Sun Nov 03, 2019 4:32 pm
Location: UK

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:28 am

Well done RPF/RPT, it's a great little computer concept, just wished I'd have had one of these when I was younger - massive possibilities ...... :D
"Never get out of the boat." Absolutely goddamn right!
Unless you were goin' all the way...

User avatar
rpiMike
Posts: 1609
Joined: Fri Aug 10, 2012 12:38 pm
Location: Cumbria, UK

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:30 am

Awesome, reminds me of computers of the 80’s such as the BBC B, ZX Spectrum and Commodore 64.

Would love to see a pic of the board inside.

Well done Pi team.

User avatar
Paul Webster
Posts: 833
Joined: Sat Jul 30, 2011 4:49 am
Location: London, UK
Contact: Twitter

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:35 am

Very neat and tidy.

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 27726
Joined: Sat Jul 30, 2011 7:41 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:35 am

rpiMike wrote:
Mon Nov 02, 2020 8:30 am
Awesome, reminds me of computers of the 80’s such as the BBC B, ZX Spectrum and Commodore 64.

Would love to see a pic of the board inside.

Well done Pi team.
There will be third party teardowns out very soon - Jeff Geerling has done one.

It's a new design of boad (not a Pi4 in a case) and has a large heat spreader inside, and the C0 2711 chip which has better clock gating so blocks can be turned off the save power. This means we can run at 1800 by default. It runs very cool.

Teardown.

EDIT: https://www.youtube.com/watch?v=OqpylxL ... ffGeerling
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

User avatar
geerlingguy
Posts: 195
Joined: Sun Feb 15, 2015 3:43 am
Location: St. Louis, MO, USA
Contact: Website Twitter YouTube

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:40 am

rpiMike wrote:
Mon Nov 02, 2020 8:30 am
Would love to see a pic of the board inside.
Heat spreader / heat sink:

Image

Everything disassembled:

Image

I have many more pictures of the (great looking) guts in my blog post: https://www.jeffgeerling.com/blog/2020/ ... and-review (including some that aren't in my teardown video).
The question is not whether something should be done on a Raspberry Pi, it is whether it can be done on a Raspberry Pi.

User avatar
hippie403
Posts: 49
Joined: Fri Aug 09, 2019 12:45 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:42 am

1.8GHz default clock? Is that a factory overclock, different revision of the chip or parts selected from the premium bin?

User avatar
VeryNoob
Posts: 55
Joined: Thu Feb 14, 2013 1:07 pm
Location: Australia

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:43 am

What does the power button do?

User avatar
geerlingguy
Posts: 195
Joined: Sun Feb 15, 2015 3:43 am
Location: St. Louis, MO, USA
Contact: Website Twitter YouTube

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:45 am

VeryNoob wrote:
Mon Nov 02, 2020 8:43 am
What does the power button do?
It turns on the Pi 400 ;)

But more seriously, when you plug in USB-C power, the Pi 400 immediately turns on just like a Pi 4. However, you can hard-power-off the Pi 400 by holding down Fn + F10 (power key) for ~10 seconds.

And if you shut it down, you can press the power button to turn it back on.
The question is not whether something should be done on a Raspberry Pi, it is whether it can be done on a Raspberry Pi.

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 27726
Joined: Sat Jul 30, 2011 7:41 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:46 am

hippie403 wrote:
Mon Nov 02, 2020 8:42 am
1.8GHz default clock? Is that a factory overclock, different revision of the chip or parts selected from the premium bin?
New revision of chip.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

User avatar
HermannSW
Posts: 3431
Joined: Fri Jul 22, 2016 9:09 pm
Location: Eberbach, Germany
Contact: Website Twitter YouTube

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:46 am

jamesh wrote:
Mon Nov 02, 2020 8:23 am
Another new product!

https://www.raspberrypi.org/products/raspberry-pi-400/
Very interesting product!
(like my ZX81 or Commodore 64 in the early 80s)

Your website seems to be over its limit, the link does not work most times.
geerlingguy wrote:
Mon Nov 02, 2020 8:40 am
I have many more pictures of the (great looking) guts in my blog post: https://www.jeffgeerling.com/blog/2020/ ... and-review (including some that aren't in my teardown video).
So it is neither a Pi4B nore a compute module 4 according the photo.
Is it true that the Pi400 does not have an external CSI-2 camera connector?
Does it have an internal CSI-2 camera connector at least?
https://stamm-wilbrandt.de/en/Raspberry_camera.html
https://stamm-wilbrandt.de/en#raspcatbot
https://github.com/Hermann-SW/raspiraw
https://github.com/Hermann-SW/Raspberry_v1_camera_global_external_shutter
https://stamm-wilbrandt.de/working_with_FPGAs

User avatar
Paul Webster
Posts: 833
Joined: Sat Jul 30, 2011 4:49 am
Location: London, UK
Contact: Twitter

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:47 am

hippie403 wrote:
Mon Nov 02, 2020 8:42 am
1.8GHz default clock? Is that a factory overclock, different revision of the chip or parts selected from the premium bin?
Different chip revision - see 5 minutes into Jeff's video

Edit:
same as CM4 ... which is clocked slower.
So does that mean that CM could safely go to 1.8GHz ?
Last edited by Paul Webster on Mon Nov 02, 2020 8:56 am, edited 1 time in total.

tank
Posts: 65
Joined: Thu Dec 15, 2011 5:51 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:54 am

Is it possible to use POE ?

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 27726
Joined: Sat Jul 30, 2011 7:41 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:57 am

tank wrote:
Mon Nov 02, 2020 8:54 am
Is it possible to use POE ?
No.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

User avatar
geerlingguy
Posts: 195
Joined: Sun Feb 15, 2015 3:43 am
Location: St. Louis, MO, USA
Contact: Website Twitter YouTube

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 8:59 am

Paul Webster wrote:
Mon Nov 02, 2020 8:47 am
hippie403 wrote:
Mon Nov 02, 2020 8:42 am
1.8GHz default clock? Is that a factory overclock, different revision of the chip or parts selected from the premium bin?
Different chip revision - see 5 minutes into Jeff's video

Edit:
same as CM4 ... which is clocked slower.
So does that mean that CM could safely go to 1.8GHz ?
I've been using the CM4 at 2.147 GHz for a ton of testing the past week, and haven't run into any hiccups. Even regular Pi 4 B's will handle the overclock well (I haven't had one fail, and I've maybe tested 25 or so of them), but the key is the cooling. Using a good heatsink and/or fan will help immensely.

The Pi 400 has a huge heat spreader (that weighs around 100g) to get the heat away from the SoC.
The question is not whether something should be done on a Raspberry Pi, it is whether it can be done on a Raspberry Pi.

cleverca22
Posts: 2396
Joined: Sat Aug 18, 2012 2:33 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:03 am

is the usb-c port wired up any differently from the pi4b?
was the second ADC of the PMIC wired up to the extra CC line?

i notice there are 3 usb-host ports, is the 4th port used for the keyboard?

User avatar
Paul Webster
Posts: 833
Joined: Sat Jul 30, 2011 4:49 am
Location: London, UK
Contact: Twitter

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:03 am

jamesh wrote:
Mon Nov 02, 2020 8:57 am
tank wrote:
Mon Nov 02, 2020 8:54 am
Is it possible to use POE ?
No.
I see from Jeff's teardown video (at 4:40) that the new Ethernet controller supports POE+ - so I presume the issue is the lack of wiring inside the Pi400 to take power from there.
Supporting the new controller is interesting though ... perhaps it means that the next RPi release has built-in POE using it.

https://www.bourns.com/docs/Product-Dat ... 1625el.pdf

aBUGSworstnightmare
Posts: 2413
Joined: Tue Jun 30, 2015 1:35 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:09 am

Is it possible to power Pi400 via GPIO header .. and where is pin1 of the header (can't see this from the product brief)?

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 27726
Joined: Sat Jul 30, 2011 7:41 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:13 am

Why are people asking questions that seem to be asking to use the Pi 400 in a way that its really not intended to be used? This is a desktop version of the Pi4. That is the target market. If you want power over GPIO, or OTG boot or the PMIC ADC why not use the Pi4? There are trade offs, pick the right tool for the job!
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

LTolledo
Posts: 4474
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:14 am

Dagnabbit! I WANT ONE! :D :D

when will it be available?
....seems like my local fave supplier may be a bit to late with new item stockings....
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

cleverca22
Posts: 2396
Joined: Sat Aug 18, 2012 2:33 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:17 am

jamesh wrote:
Mon Nov 02, 2020 9:13 am
Why are people asking questions that seem to be asking to use the Pi 400 in a way that its really not intended to be used? This is a desktop version of the Pi4. That is the target market. If you want power over GPIO, or OTG boot or the PMIC ADC why not use the Pi4? There are trade offs, pick the right tool for the job!
i wanted to use the PMIC to interrogate what is on the usb-c port better
the pi4b isnt suitable for that, because only 1 CC line is wired up, and you cant even detect the usb-c cable if its in upside-down

having both ADC's wired up would only be a single extra trace on the pcb, and would allow you to detect if the cable is going to a host or device, and detect if its an e-marked cable, then the host/device mode can be fully automatic, but not via the legacy OTG_ID pin

paulhothersall
Posts: 30
Joined: Wed Jul 31, 2013 5:55 am

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:19 am

please sell just the board as a SKU, perhaps with stick on heat sinks.

Its a pi with all IO on one side. this is a huge win for many many projects. I can already see me getting a bunch of these, especially with the higher clocked CPU helps, and it will be eWaste just to toss the keyboard for them.

fanoush
Posts: 654
Joined: Mon Feb 27, 2012 2:37 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:23 am

Will it be available in black color too?

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 27726
Joined: Sat Jul 30, 2011 7:41 pm

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:25 am

fanoush wrote:
Mon Nov 02, 2020 9:23 am
Will it be available in black color too?
Eventually, according to an Eben interview somewhere. No idea when. It's needed for commercial usage - call centres etc.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed.
I've been saying "Mucho" to my Spanish friend a lot more lately. It means a lot to him.

User avatar
MuddyDogs
Posts: 17
Joined: Sat Mar 03, 2012 7:12 am

Re: The Raspberry Pi 400 thread!

Mon Nov 02, 2020 9:27 am

This is AWESOME 8-)
LOVE the form factor. Totally takes me back to my youth with the BBC Model B. Happy days :D
Also just really practical. Total thumbs up.
Have one on order from Pimoroni now.
:D :D :D :D :D :D

Return to “Raspberry Pi 400”