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  1. #1
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    Getting a Pi4 for pCP

    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

  2. #2
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    Quote Originally Posted by diode84 View Post
    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

  3. #3
    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
    Home: Raspberry Pi 4/pCP7.0/LMS8.0.1/Material with files on QNAP TS-251A
    Touch > DacMagic 100 > Naim Audio Nait 3 > Mission 752 (plus Rega Planar 3 > Rega Fono Mini; Naim CD3)
    2 x Squeezebox Radios, 1 X Squeezebox 3 (retired), spare Pi2/piCorePlayer
    Office: LMS8.0.0 running on Raspberry Pi3; Raspberry Pi 3 player with touchscreen/piCorePlayer/IQaudIO DAC and Amp
    Portable: Raspberry Pi 3B/pCP6.1.0/LMS8.0.0/Material, files on Seagate portable drive, powered via power brick

  4. #4
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    Recommended power requirements here

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

  5. #5
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    Quote Originally Posted by Grumpy Bob View Post
    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

  6. #6
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    Quote Originally Posted by Man in a van View Post
    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

  7. #7
    Quote Originally Posted by slartibartfast View Post
    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
    Last edited by Grumpy Bob; 2021-01-02 at 06:42.
    Home: Raspberry Pi 4/pCP7.0/LMS8.0.1/Material with files on QNAP TS-251A
    Touch > DacMagic 100 > Naim Audio Nait 3 > Mission 752 (plus Rega Planar 3 > Rega Fono Mini; Naim CD3)
    2 x Squeezebox Radios, 1 X Squeezebox 3 (retired), spare Pi2/piCorePlayer
    Office: LMS8.0.0 running on Raspberry Pi3; Raspberry Pi 3 player with touchscreen/piCorePlayer/IQaudIO DAC and Amp
    Portable: Raspberry Pi 3B/pCP6.1.0/LMS8.0.0/Material, files on Seagate portable drive, powered via power brick

  8. #8
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    Quote Originally Posted by slartibartfast View Post
    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

  9. #9
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    Quote Originally Posted by Man in a van View Post
    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

  10. #10
    Senior Member
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    Feb 2019
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    195
    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.

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