dom
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Fri Mar 16, 2018 12:55 pm

bensimmo wrote:
Thu Mar 15, 2018 6:01 pm
Conditional filters... Config.txt.

Could we have a separate Pi3+ one.. in fact could you make all the different models conditional rather than ranges while you are at it.
Been added to rpi-update firmware (but not in apt yet).
Note: [pi3+] acts in addition to [pi3] on a pi3+.
If you are using both sections then make sure [pi3+] is last in the file so it has precedence.

milhouse
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Fri Mar 16, 2018 12:59 pm

bensimmo wrote:
Fri Mar 16, 2018 11:26 am
I prefer the spring load, get really annoyed at the Pi3 when it been nudged in a case or similar (like the Google Voice) and doesn't start.
Bring back the spring load I say. So much easier and not having to get pliers to pull the SD card out.
Or you could attach a length of sticky tape as a pull tab, problem solved. :)

Atp93
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Fri Mar 16, 2018 4:19 pm

Does the WiFi support also UNII-3 band 5.725-5.850 GHz? Is there a full support of the 802.11ac in outdoor bandwidth 5,6–5,8 GHz (5470–5725 MHz and 5725–5850 MHz)?

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bensimmo
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Fri Mar 16, 2018 8:06 pm

Atp93 wrote:
Fri Mar 16, 2018 4:19 pm
Does the WiFi support also UNII-3 band 5.725-5.850 GHz? Is there a full support of the 802.11ac in outdoor bandwidth 5,6–5,8 GHz (5470–5725 MHz and 5725–5850 MHz)?
Does this give the answer ?
This is when set to GB for the UK

Code: Select all

iw reg get

global
country DE: DFS-ETSI
	(2400 - 2483 @ 40), (N/A, 20), (N/A)
	(5150 - 5250 @ 80), (N/A, 20), (N/A), NO-OUTDOOR, AUTO-BW
	(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
	(5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
	(5725 - 5875 @ 80), (N/A, 13), (N/A)
	(57000 - 66000 @ 2160), (N/A, 40), (N/A)[code]
It may not but look similar to what you are asking.

jlowe
Posts: 18
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Fri Mar 16, 2018 9:55 pm

W. H. Heydt wrote:
Fri Mar 16, 2018 5:59 am
mosespi wrote:
Fri Mar 16, 2018 5:19 am
Does anyone know if there is US stock anywhere right now? I got an order into Newark, but it looks like they have no stock. Maybe I missed the rush..

Regards,
-Moses
Have you checked the UK sources? Shipping isn't any more expensive (and may be less) and the transit time is about the same.
Ordered mine on 3/14 ~6AM EDT.. from https://www.pishop.us/ .. arrived today, 3/16! Shipping was $7.45

..jay

hippy
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 1:28 pm

bensimmo wrote:
Fri Mar 16, 2018 8:06 pm
This is when set to GB for the UK

Code: Select all

country DE: DFS-ETSI
Isn't "DE" Germany, not the UK ?

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pi-anazazi
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 3:50 pm

I think I'm not alone with my deep disfavour of all device with built-in wifi/BT, therefore my question:

Are there any plans to upgrade the raspi 2 (with the already 64bit CPU...) to include the upgraded LAN? That would be really perfect, as I avoid the raspi 3 wherever possible (and removing driver/FW is not enough in my opinion...).

Would love to see 2B++ with 1.4 GHz and "fast" LAN! :-)
Kind regards

anazazi

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bensimmo
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 4:44 pm

hippy wrote:
Sat Mar 17, 2018 1:28 pm
bensimmo wrote:
Fri Mar 16, 2018 8:06 pm
This is when set to GB for the UK

Code: Select all

country DE: DFS-ETSI
Isn't "DE" Germany, not the UK ?
That's what I said, but hey ho, it's set to DE.
viewtopic.php?p=1287356#p1286183
See what your says.

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 5:35 pm

pi-anazazi wrote:
Sat Mar 17, 2018 3:50 pm
I think I'm not alone with my deep disfavour of all device with built-in wifi/BT, therefore my question:

Are there any plans to upgrade the raspi 2 (with the already 64bit CPU...) to include the upgraded LAN? That would be really perfect, as I avoid the raspi 3 wherever possible (and removing driver/FW is not enough in my opinion...).

Would love to see 2B++ with 1.4 GHz and "fast" LAN! :-)
We sell so few Pi2, I doubt we will be making any changes. Would never make back the cost of development.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed. Here's an example...
"My grief counseller just died, luckily, he was so good, I didn't care."

W. H. Heydt
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 5:44 pm

pi-anazazi wrote:
Sat Mar 17, 2018 3:50 pm
I think I'm not alone with my deep disfavour of all device with built-in wifi/BT, therefore my question:

Are there any plans to upgrade the raspi 2 (with the already 64bit CPU...) to include the upgraded LAN? That would be really perfect, as I avoid the raspi 3 wherever possible (and removing driver/FW is not enough in my opinion...).

Would love to see 2B++ with 1.4 GHz and "fast" LAN! :-)
Since there is no Pi2B+ (it's a Pi2Bv1.2, or Pi2B2), that would be a logical progression. On the other hand, I don't think the Pi2B needs to jump all the way to 1.4GHz, not that I'd object if it did. Even a jump to somewhere in the range of 1GHz to 1.2GHz would be reasonable given the current default of 900MHz. There is a sound economic reason for running a lower clock, as well. It enables the use of chips that don't test at the full 1.4GHz instead of just throwing them away (i.e. increased yield of usable chips). Other than that, I agree that a Pi2B+ would be a good upgrade.

having said all that, I don't expect to see it any time soon. *Maybe* in a year or two. The first obstacle will be to handle the surge in demand for Pi3B+ boards. I'm sure the Pencoed factory is churning them as fast as they can to meet initial demand and there simply isn't the capactity to do anything else. See Dr. Upton's remarks about the delay in the PoE HAT (due to scheduling production runs). Much as I think a Pi2B+ is an excellent idea, I think it would be more important to get a Pi3A to market. The A+ is getting exceedingly long in the tooth and a major refresh is really needed. I would even support the idea of a Pi2A (that is, an analog to the *current* Pi2B, let alone an analog to a Pi2B+ or Pi3B+). In addition, it's looking like there actually is some demand for CM3+/CM3L+ and that would likely have priority over a Pi2B+.

And if all of that weren't enough, the RPT has to guess at the demand for '2837B0 boards in order to get enough. Underestimating demand for new Pis has been a recurring problem and is especially difficult given the long lead times (typically 4 to 5 *months*) from putting in an order for chips and getting them. Per comments already made, Pis are being sold at a rate of 5 million per year. I suspect sales could go higher, but it may be running into a production limit. (Hey, Sony1 Perhaps you should add another production line dedicated to Pis.)

And in the final analysis, there may not be enough of us that *like* boards without WiFi/BT on them to make it worthwhile go through the expense of designing and making a Pi2B+.

W. H. Heydt
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 5:46 pm

jamesh wrote:
Sat Mar 17, 2018 5:35 pm
pi-anazazi wrote:
Sat Mar 17, 2018 3:50 pm
I think I'm not alone with my deep disfavour of all device with built-in wifi/BT, therefore my question:

Are there any plans to upgrade the raspi 2 (with the already 64bit CPU...) to include the upgraded LAN? That would be really perfect, as I avoid the raspi 3 wherever possible (and removing driver/FW is not enough in my opinion...).

Would love to see 2B++ with 1.4 GHz and "fast" LAN! :-)
We sell so few Pi2, I doubt we will be making any changes. Would never make back the cost of development.
Going to play Devil's Advocate here for a moment. How much redesign would be needed? Couldn't a Pi2B+ just be a Pi3B+ without the WiFi/BT parts being fitted?

fruitoftheloom
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 6:48 pm

W. H. Heydt wrote:
Sat Mar 17, 2018 5:46 pm
jamesh wrote:
Sat Mar 17, 2018 5:35 pm
pi-anazazi wrote:
Sat Mar 17, 2018 3:50 pm
I think I'm not alone with my deep disfavour of all device with built-in wifi/BT, therefore my question:

Are there any plans to upgrade the raspi 2 (with the already 64bit CPU...) to include the upgraded LAN? That would be really perfect, as I avoid the raspi 3 wherever possible (and removing driver/FW is not enough in my opinion...).

Would love to see 2B++ with 1.4 GHz and "fast" LAN! :-)
We sell so few Pi2, I doubt we will be making any changes. Would never make back the cost of development.
Going to play Devil's Advocate here for a moment. How much redesign would be needed? Couldn't a Pi2B+ just be a Pi3B+ without the WiFi/BT parts being fitted?

Actually not as the RPi 3B+ has a WiFi Antenna similar to a ZeroW, therefore a new mainboard would need to be designed, is it cost effective ????

Obviously it would appear not from above comment...
Retired disgracefully.....

drgeoff
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 7:17 pm

fruitoftheloom wrote:
Sat Mar 17, 2018 6:48 pm
W. H. Heydt wrote:
Sat Mar 17, 2018 5:46 pm
]Couldn't a Pi2B+ just be a Pi3B+ without the WiFi/BT parts being fitted?
Actually not as the RPi 3B+ has a WiFi Antenna similar to a ZeroW, therefore a new mainboard would need to be designed, is it cost effective ????
Please explain why that is not a non-sequitur. Why does it matter if the PWB has a Wi-Fi antenna but the RF chippery is not fitted?

hippy
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 7:43 pm

drgeoff wrote:
Sat Mar 17, 2018 7:17 pm
Why does it matter if the PWB has a Wi-Fi antenna but the RF chippery is not fitted?
Exactly like the original A and B which seemed to have the same PCB but with different components fitted or left off.

Pi 3B+- = Pi 2B+ :P

fruitoftheloom
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 8:03 pm

hippy wrote:
Sat Mar 17, 2018 7:43 pm
drgeoff wrote:
Sat Mar 17, 2018 7:17 pm
Why does it matter if the PWB has a Wi-Fi antenna but the RF chippery is not fitted?
Exactly like the original A and B which seemed to have the same PCB but with different components fitted or left off.

Pi 3B+- = Pi 2B+ :P

The A had the USB Section of the B removed, entirely different scenario, the A+ / B+ was the same scenario as A / B. The LAN951x Chipset was replaced by the Single USB Port.

So unsure what you are trying to convey or is this another of your dreams ??


Bluetooth and Wireless are at the other end of the board than USB, removing these components you would also need to break the wiring to UART & SDIO....
Retired disgracefully.....

W. H. Heydt
Posts: 10772
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Location: Vallejo, CA (US)

Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 8:06 pm

drgeoff wrote:
Sat Mar 17, 2018 7:17 pm
fruitoftheloom wrote:
Sat Mar 17, 2018 6:48 pm
W. H. Heydt wrote:
Sat Mar 17, 2018 5:46 pm
]Couldn't a Pi2B+ just be a Pi3B+ without the WiFi/BT parts being fitted?
Actually not as the RPi 3B+ has a WiFi Antenna similar to a ZeroW, therefore a new mainboard would need to be designed, is it cost effective ????
Please explain why that is not a non-sequitur. Why does it matter if the PWB has a Wi-Fi antenna but the RF chippery is not fitted?
The only thing I can think of would be that the cavity would still radiate any stray signals near it, even in the absence of the connecting circuitry. It *seems* unlikely to be an issue, but RF is funny stuff. If that's that case, then one would think that the "redesign" would be to omit the cavity from that plane, which hardly seems to be a very expensive process. I suspect the required testing with the new power and CPU circuits would be the cost issue, not the board work, per se.

gregeric
Posts: 1509
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 8:42 pm

fruitoftheloom wrote:
Sat Mar 17, 2018 8:03 pm
hippy wrote:
Sat Mar 17, 2018 7:43 pm
drgeoff wrote:
Sat Mar 17, 2018 7:17 pm
Why does it matter if the PWB has a Wi-Fi antenna but the RF chippery is not fitted?
Exactly like the original A and B which seemed to have the same PCB but with different components fitted or left off.

Pi 3B+- = Pi 2B+ :P

The A had the USB Section of the B removed, entirely different scenario, the A+ / B+ was the same scenario as A / B. The LAN951x Chipset was replaced by the Single USB Port.

So unsure what you are trying to convey or is this another of your dreams ??


Bluetooth and Wireless are at the other end of the board than USB, removing these components you would also need to break the wiring to UART & SDIO....
I've withdrawn from these forums recently because of such rubbish [MOD EDIT]. Now I don't care if that's imposed on me. This forum would be a lot less noisy & more instructive if people restricted themselves to commenting on stuff they had the first inkling about.

W. H. Heydt
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sat Mar 17, 2018 11:43 pm

boomerman wrote:
Sat Mar 17, 2018 10:38 pm
It's like we developed, we produced, it's for a free charitable educational purpose, we need between 500-1000 Pi Zero W's, and nada.... Just a new improved product.
At that quantity, talk to the RPF. It can be done. If you weren't doing an educational project, they would definitely be more than $10 each, but that may not be the case with a defined educational project. (Note that getting Pi0Ws in bulk at $10 each for education is speculation on my part. You *really* need to talk to the RPF about it. Grousing about it on the forums is exactly the wrong way to go about it.)

nars
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sun Mar 18, 2018 2:12 am

jdb wrote:
Thu Mar 15, 2018 10:54 pm
nars wrote:
Thu Mar 15, 2018 10:31 pm
Does it still have the annoying non-spring-loaded microsd slot?

Pity that there is still no wifi connector for external wifi antenna... rf shielding is fun with internal antenna just at side of the chip :) From my tests on rpi3 (and same on rpi2 with wifi adapter connected right on a rpi usb port, without an usb extension cable) the rpi on it's own (specially when hdmi is connected, and depending on the images that will be displayed) causes considerable interference on wifi...
1. the push-push slot was replaced for a friction fit slot on Pi 3, 2 years ago.
2. you should buy a better HDMI cable if you're experiencing interference issues. I'm not sure what good an external antenna connector would do if your HDMI cable was blasting RF interference all over the place.
1. Yes, I know, I own a few pi2 and pi3 for various applications. Just wanted to know if that was still the same for pi3+, as I find it really annoying to remove the card... it's basically impossible to remove the card from the hole on the (official) case without some pliers or similar, as a few others said... not really easy... but I understand that it's hard to please all people... but well if friction will still be used on new versions, etc... then maybe the case needs some change... maybe a bigger/different hole... maybe with a cover or something...

2. Concerning wifi+hdmi interference, yes, I did also thought about the cable at first... and in fact I tried some different cables, including really good brand/quality shielded cables... as well as I even tried with different rpi's and different monitors/tv's... same... then I concluded that the interference comes from inside the rpi itself, if I attach the (official) wifi adapter on a rpi2 directly on a rpi usb port (and yes I tried different ports) and having hdmi active* then I get considerable degraded wifi performance comparing to if I attach the usb adapter on a small usb extension cable or even a 90 degree usb angle adapter (like amazon asin B00CDQ3QZ0) just to put the wifi adapter a bit far from the rpi itself (some few centimeters seems enough). I can say that while testing I tried with good hdmi cable very close to the wifi adapter itself and proved that the cable was well shielded, then that is not really the source (at least with good cable) and the interference must come from the rpi itself.

From my tests either on rpi2+wifi adapter or on rpi3 I could reproduce the problem, easy to see the difference by turning video signal on/off with 'vcgencmd display_power 0/1' (or disconnecting hdmi cable) while doing a download... I was getting 2MB/s download speed from wifi with video on and 5+ with video off... big difference really... on rpi2's I did fix it with the 90 degree usb angle adapter I mention above, on rpi3 there is no way to fix it obviously...

*note: the interference apparently depends on the image being displayed... it's easily noticeable with the default raspbian desktop wallpaper, but if you instead open a maximized terminal window, for example, then it is much less noticeable, I guess it has something to do with image complexity...

Since some time I was with the idea to post this but had no time to do it before... maybe I should create a topic just for that? I would really like to know if others can also reproduce the same, but I can only guess yes since I tested with different rpi's, monitors, tv's... surely the distance to the wifi ap will also make difference, if you are close to the ap you may probably not be able to notice it (but I didn't test that).

Btw, as I guess the hdmi signal is generated on the cpu itself, I wonder if the 3+ heat-spreader may somehow work as rf shielding to the cpu... but maybe not... probably it is not even grounded... but if I get hands on a 3+ I will surely repeat my tests with this issue.
Last edited by nars on Sun Mar 18, 2018 12:08 pm, edited 4 times in total.

rsterz
Posts: 6
Joined: Sun Mar 18, 2018 7:30 am

Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sun Mar 18, 2018 7:38 am

Just received my 3B+ on Friday and installed everything yesterday. Unfortunately it crashed twice already without installing more software than Raspbian OS showing memory errors on the console. Power supply is original Raspberry one, changed SD card to another one for testing. No change in stability as it crashed again. The Pi is only connected via Ethernet. HDMI and USB are unplugged.

The only configuration so far was done by raspi-config to activate SSH daemon and setting up LAN, reducing GPU memory to 16MB and changing localisation. And I did an update of the packages with apt-get.

Any idea if it is related to the current software version? Otherwise the Pi will go back for replacement.

texy
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sun Mar 18, 2018 9:29 am

rsterz wrote:
Sun Mar 18, 2018 7:38 am
Just received my 3B+ on Friday and installed everything yesterday. Unfortunately it crashed twice already without installing more software than Raspbian OS showing memory errors on the console. Power supply is original Raspberry one, changed SD card to another one for testing. No change in stability as it crashed again. The Pi is only connected via Ethernet. HDMI and USB are unplugged.

The only configuration so far was done by raspi-config to activate SSH daemon and setting up LAN, reducing GPU memory to 16MB and changing localisation. And I did an update of the packages with apt-get.

Any idea if it is related to the current software version? Otherwise the Pi will go back for replacement.
Is this using NOOBS or Raspbian download?
Texy
Various male/female 40- and 26-way GPIO header for sale here ( IDEAL FOR YOUR PiZero ):
https://www.raspberrypi.org/forums/viewtopic.php?f=93&t=147682#p971555

texy
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sun Mar 18, 2018 9:30 am

I've tided up some posts in this thread - please let's keep on-topic and clean people.
Texy
Various male/female 40- and 26-way GPIO header for sale here ( IDEAL FOR YOUR PiZero ):
https://www.raspberrypi.org/forums/viewtopic.php?f=93&t=147682#p971555

hippy
Posts: 5794
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sun Mar 18, 2018 5:07 pm

fruitoftheloom wrote:
Sat Mar 17, 2018 8:03 pm
hippy wrote:
Sat Mar 17, 2018 7:43 pm
drgeoff wrote:
Sat Mar 17, 2018 7:17 pm
Why does it matter if the PWB has a Wi-Fi antenna but the RF chippery is not fitted?
Exactly like the original A and B which seemed to have the same PCB but with different components fitted or left off.

Pi 3B+- = Pi 2B+ :P

The A had the USB Section of the B removed, entirely different scenario, the A+ / B+ was the same scenario as A / B. The LAN951x Chipset was replaced by the Single USB Port.

So unsure what you are trying to convey or is this another of your dreams ??


Bluetooth and Wireless are at the other end of the board than USB, removing these components you would also need to break the wiring to UART & SDIO....
I am simply suggesting not fitting the WiFi/BT electrical parts on a Pi3B+ and calling that a Pi 2B+. As W. H. Heydt had suggested earlier.

It is not exactly "a dream" it is something anyone can produce at home if they so desired and had the appropriate desoldering equipment.

I don't see how it would "break" the wiring to UART and SDIO. It's true that the signals won't then go anywhere but that shouldn't "break" things electrically. Likewise WiFi/BT and SoC being at opposite ends of the boards should not really affect things.

Perhaps some pull-ups or pull-downs might need to be fitted if the WiFi/BT parts are removed to stop signals floating but it would probably be easy to design a new revision of the Pi 3B+ board to cater for either Pi 3B+ or Pi 2B+ assembly on the same board. It shouldn't need a full board and completely new board design just to not fit WiFi/BT parts.

Maybe someone will unsolder the WiFi/BT parts and report back how well that worked.

rsterz
Posts: 6
Joined: Sun Mar 18, 2018 7:30 am

Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sun Mar 18, 2018 5:25 pm

Issue occurs with Raspbian via Etcher as well as NOOBS. Took a photo of one of the crashes. In this case I used memtester to force the crash to happen as soon as possible. Maybe someone has an idea where to start searching for a solution.
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alphanumeric
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Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Sun Mar 18, 2018 7:19 pm

hippy wrote:
Sun Mar 18, 2018 5:07 pm
fruitoftheloom wrote:
Sat Mar 17, 2018 8:03 pm
hippy wrote:
Sat Mar 17, 2018 7:43 pm

Exactly like the original A and B which seemed to have the same PCB but with different components fitted or left off.

Pi 3B+- = Pi 2B+ :P

The A had the USB Section of the B removed, entirely different scenario, the A+ / B+ was the same scenario as A / B. The LAN951x Chipset was replaced by the Single USB Port.

So unsure what you are trying to convey or is this another of your dreams ??


Bluetooth and Wireless are at the other end of the board than USB, removing these components you would also need to break the wiring to UART & SDIO....
I am simply suggesting not fitting the WiFi/BT electrical parts on a Pi3B+ and calling that a Pi 2B+. As W. H. Heydt had suggested earlier.

It is not exactly "a dream" it is something anyone can produce at home if they so desired and had the appropriate desoldering equipment.

I don't see how it would "break" the wiring to UART and SDIO. It's true that the signals won't then go anywhere but that shouldn't "break" things electrically. Likewise WiFi/BT and SoC being at opposite ends of the boards should not really affect things.

Perhaps some pull-ups or pull-downs might need to be fitted if the WiFi/BT parts are removed to stop signals floating but it would probably be easy to design a new revision of the Pi 3B+ board to cater for either Pi 3B+ or Pi 2B+ assembly on the same board. It shouldn't need a full board and completely new board design just to not fit WiFi/BT parts.

Maybe someone will unsolder the WiFi/BT parts and report back how well that worked.
Why not just use a 3B+ and turn off the WIFI? Instead of getting a soldering iron out? Not meaning to start anything, just honestly wondering why go to the trouble of de soldering stuff you can just turn off? Granted, a Pi Foundation 2B+ would likely cost less than a 3B+ but would it be worth the effort? Me personally, I'd be more interested in a 3A or 3A+ than a 2B+. I have several headless setups that don't need Ethernet or 4 USB ports. I currently us an A+ or a Pi Zero W if I need WIFI.

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