Getting a Pi4 for pCP

[diode84]

Hello
Having destroyed my Pi3 b+ I need a new Pi. The earlier, 2019, Pi 4s are a good bit cheaper than later ones but I have heard of problems.
I am a bit concerned they need special power supplies and consume a lot of power. My Pi 1 and the Pi 3b+ take virtually no power
Are they a good idea?
Thanks and Happy New Year.
diode84

[slartibartfast]

Hello
Having destroyed my Pi3 b+ I need a new Pi. The earlier, 2019, Pi 4s are a good bit cheaper than later ones but I have heard of problems.
I am a bit concerned they need special power supplies and consume a lot of power. My Pi 1 and the Pi 3b+ take virtually no power
Are they a good idea?
Thanks and Happy New Year.
diode84

IIRC you need to use the Official Raspberry Pi power supply. The power consumption with the latest firmware is no different to the newer version.
Where did you see the cheaper 2019 ones?
Sent from my Pixel 3a using Tapatalk

[Grumpy Bob]

I'm running a Pi4 with pCP 7.0 and LMS, powered by USB via my QNAP NAS rather than a Pi4 specific USB-C power supply. It's been fine for the 3-4 weeks since I set it up, despite some adverse comments in another thread! I don't have a hard drive, fan or HAT attached to this Pi (which could, I suppose, increase its power requirement).

Robert

[Man in a van]

Recommended power requirements here

https://www.raspberrypi.org/document...ower/README.md

[slartibartfast]

I'm running a Pi4 with pCP 7.0 and LMS, powered by USB via my QNAP NAS rather than a Pi4 specific USB-C power supply. It's been fine for the 3-4 weeks since I set it up, despite some adverse comments in another thread! I don't have a hard drive, fan or HAT attached to this Pi (which could, I suppose, increase its power requirement).

Robert

Is that a newer Pi4 though?

Sent from my Pixel 3a using Tapatalk

[slartibartfast]

Recommended power requirements here

https://www.raspberrypi.org/document...ower/README.md

In case you missed it there was an issue with early Pi4s that meant they only worked with official power supplies.
https://www.scorpia.co.uk/2019/06/28...-cc-resistors/

Sent from my Pixel 3a using Tapatalk

[Grumpy Bob]

Is that a newer Pi4 though?

Sent from my Pixel 3a using Tapatalk

Probably - I bought it mid-December.

Edit - I'm picking up that there are two potential issues - firstly how the original Pi4 worked with its power supply, and secondly whether a USB port can supply enough current. For the second, it a appears so. And my Pi4 seems happy enough.

Robert

[Man in a van]

In case you missed it there was an issue with early Pi4s that meant they only worked with official power supplies.
https://www.scorpia.co.uk/2019/06/28...-cc-resistors/

Sent from my Pixel 3a using Tapatalk

Yep, I remember

It was the folk using "smart chargers" that had the problem, iirc a cheap interconnect cable, without the "smart" bit was one of the fixes

But it's "all better now"

But the rpi devs still drop the odd bollock

ronnie

[slartibartfast]

Yep, I remember

It was the folk using "smart chargers" that had the problem, iirc a cheap interconnect cable, without the "smart" bit was one of the fixes

But it's "all better now"

But the rpi devs still drop the odd bollock

ronnie

When I bought my Pi it was at the end of 2019 so is one of the older ones but I bought a power supply with it and never tried anything else.

Sent from my Pixel 3a using Tapatalk

[diode84]

I am definitely getting very cold feet now. The Pi4 needs 5.1 volts and if I have a power supply, 5.1 volts, say at 10 amps with the correct plug on it to
go into the Pi, is that a problem to a Pi4. I am used to using stabilised power supplies and as long as they give out more current than the Pi needs maximum
then that is OK.
Is there something special in Pi PSUs like Dell use an extra lead for identification.