Raspberry Pi 4 model Bs arriving with newer 'C0' stepping

http://www.jeffgeerling.com/blog/2021/raspberry-pi-4-model-bs-arriving-newer-c0-stepping

by geerlingguy • 5 years ago

51 11 5 years ago

destitude• 5 years ago

Who even has Pi 4s in stock in USA? Last I checked everyone was out.

I wasn't able to find anywhere to buy just the board, but starter kits with sd card/power adapter/hdmi/etc are available on Amazon for ~100 USD as of this past Thursday.

pdx6• 5 years ago

8GB kits run about $120 at Bestbuy for Canakit and Walmart resellers are about $115 for a no name kit. If you are lucky, you can buy 1 at a time from Chicagodist as a single board for $75.

geerlingguy• 5 years ago

Lately only the 8 GB models have been in stock at Micro Center, as well as a smattering of older models and a few Compute Module 4s.

Apparently this year's seen record demand, and even with a better supply chain, Raspberry Pi Trading's had a hard time keeping up [1].

[1] https://forums.theregister.com/forum/all/2021/08/20/raspberr...

floxy• 5 years ago

https://www.pishop.us/product/raspberry-pi-4-model-b-4gb/

iudqnolq• 5 years ago

Just bought this one for ~$60 (4gb with a power supply) on ebay.

https://www.ebay.com/itm/Berryku-Raspberry-Pi-4-Model-B-DIY-...

regularfry• 5 years ago

Ooh, this is interesting. I've not bought any pi 4's yet because I don't want moving parts on them. If this means passive heatsinks are practical, I might retire some 3B's.

mhandley• 5 years ago

I've had a good experience with using a passive heatsink case on my Pi 4s. It's not lightweight, but there's a lot of thermal mass and plenty of surface area for cooling. https://thepihut.com/products/aluminium-armour-heatsink-case...

I've got one sitting here driving some animations in chromium on a spare display, currently running with a load average of 1.1 (so not working flat out on all cores, but doing a moderate amount of work). CPU temp is 49C, and the case/heatsink is just pleasantly warm to the touch.

InvaderFizz• 5 years ago

Passive has been practical for a while with the Argon or Flirc cases.

NortySpock• 5 years ago

I've been getting ~50C temps at 10-20% load using a Flirc case for the RPi 4. (21.2 C ambient in my basement; technically the RPi is in a large cupboard but I don't recall that being noticeably warmer.)

After compiling a rust program on 4 cores last week for nearly an hour, I think I hit ~72C on the CPU very briefly if memory serves, but temps dropped immediately any time rustc let off the gas.

noveltyaccount• 5 years ago

I have an 8GB model with the B0 stepping. Is there a downside to this? Can it not address all of the memory?

Raspberry Pi 4 model Bs arriving with newer 'C0' stepping

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