Bought a brand new Pi 5 32GB.
Ain't no such thing. Most RAM on a Pi 5 is 16GB. Did you mean a Pi5 with an unspecified amount of RAM and a 32GB SD card?
I wanted to boot to an SSD but the SSD requires too much power from the USB 3.0 port.
So I purchased a powered 2.5" SATA to 3.0 USB to offload the power from the pi 5.
Problem is that I can boot the pi 5 with the SSD plugged into the USB 3.0 port. But then the USB 2.0 Logitech wireless keyboard and mouse don't work.....
I can run the Pi 5 on the microSD card with no troubles at all....
But if I plug in the SSD the mouse and keyboard again shut down....
The SSD is a crucial MX500 2.5 SSD, 1000GB, current draw 1.7A
My adapter is a Gator Cable USB 3.0 to 2.5" SATA III with an included 12Vdc 2.0A power adapter.
Wish I could upload a pic or two but no luck on this forum....
So what gives???
On the pictures, either resize them so they're smaller (in terms of file size) or upload them somewhere else and post links here.
As for your USB problems...
- A Pi5 with the official PSU* can only supply 1.6A total to all bus powered USB devices and that's shared. Your drive needs 1.7A plus whatever the adapter needs. Without the official PSU ** the limit is 600mA.
- Your SSD almost certainly only takes 5V.
- Your USB adapter probably feeds the 12v input directly to the connected drive and feeds 5v from the USB host. It almost certainly doesn't regulate the 12v down to 5v to power the drive.***
- Draw more current than permitted and the Pi cuts power to all four USB A ports.
*: Or a different USB PD enabled supply capable of negotiating a 5A at 5V mode. Having a wattage rating higher than 27W is not a guarantee of this.
**: Or without a PD capable PSU
***: It has a 12v input because 3.5" drives and 5.25" ODDs need 12v.
Statistics: Posted by thagrol — Tue Jun 03, 2025 10:59 pm