2 votes

How to test SSD with rPi 3B+ without dedicated SSD power supply?

N.B. this answer contains some speculation/opinions. AFAIK, the only "standard battery of tests" that exist to "determine if the RPi PS is inadequate" is the RPi's built-in under ...
Seamus's user avatar
  • 22k
2 votes
Accepted

Pi 3B+ and USB Power to SSD

Your question is a two-part question: how much power does my SSD require? how much power can the RPi 3B+ source through one of its USB ports? Re Question 1: The Samsung-provided power requirements ...
Seamus's user avatar
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1 vote

How does the new RPi 5 function with a USB power supply?

AFAIK: No USB standards violations have been committed - since the RPi4 (⊙∆⊙). Instead, it is the standards themselves which have changed. Specifically, the latest addition to the line of "...
Seamus's user avatar
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1 vote

Does an rPi 3B+ SSD require external power?

I have a number of Pi's running with the WD Green SSD pictured and have few if any issues with them. However slightly more power hungry SSDs are marginal and for reliability use a powered hub.
Bra1n's user avatar
  • 1,251
1 vote

Does it matter whether I use internal or external or sata or nvme drive in terms of power consumption for RP4?

I've found the WD Green SSD drives work reliably with the Pi4 some other makes can hang occasionally unless a powered hub is used. I have 10 Pi's using this configuration successfully, all booting ...
Bra1n's user avatar
  • 1,251
1 vote

Does it matter whether I use internal or external or sata or nvme drive in terms of power consumption for RP4?

If you are using a SATA drive you need some kind of enclosure with USB adapter, since the Pi does not have a SATA port. This is a bit silly unless there is some reason you need to use some specific ...
goldilocks's user avatar
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1 vote
Accepted

Can I power my PI via USB if I Disable USB?

Does this disable USB power too? Or just support for USB data/devices? The latter. No driver or any form of software is required for the 5V system to work, nor can it be turned off with software ...
goldilocks's user avatar
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1 vote

Powering RPi 4B via USB-C Intermittent

Did some probing, and tested it out on another RPi4, and then soldered into TP1 and TP7. Seems to work fine. Let me know if this is not optimal. Thanks.
myeager's user avatar
  • 21
1 vote

Disable USB until boot is complete

AFAIK it is not possible to "disable the USB hub" but this would be a kludge in any event. Relying on automatic enumeration of attached devices is unpredictable. You should explore ...
Milliways's user avatar
  • 60k

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