[Discuss] Raspberry Pi low voltage indication

Murray Strome wmstrome at shaw.ca
Sun Aug 30 13:43:31 PDT 2020


Hi Mark,
It is a certified Data #HYD-9031 10 Port USB 3.0 HUB (10 3.0 A-type 
downstream ports. I have been unable to find any clearer specifications. 
I called London Drugs (the only store that sells them) and they don't 
have anything more complete. When I talked to him, he said that 2.4A is 
the USB 3.0 standard.

The next thing I was planning to do was to try to find a heavier (or at 
least different) cable than the one I am using. I probably have one 
somewhere, but have not found it yet.

Murray

On 2020-08-30 10:10 a.m., Mark G. wrote:
> Hi Murray,
>
> Is the individual port on the power bar able to push more than 2A?
> Sometimes those ports are themselves limited to 1A each (for charging
> only).
>
> Also, the quality of the cable could be a factor.  Does using a 
> different cable make a difference?
>
> Can you send the make/model of the "3A powered USB 3.9 bar"?
>
> Mark
>
> On 2020-08-29 19:02, Murray Strome wrote:
>> I am running my Raspberry Pi 3 with power from a 3A powered USB 3.9 
>> bar and it is the only device connected to it.  Frequently, the power 
>> light is red and there is a yellow lightning symbol at the top 
>> right.  3A should be enough, shouldn't it?  From what I have read, 2A 
>> is supposed to be sufficient. I am wondering if there is something I 
>> could look into or change that would help this situation. The 
>> temperature typically runs between 52 and 64 deg. C., which is 
>> supposed to be OK.
>>
>>
>> Thanks for any suggestions.
>>
>> Murray




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