[RPi5] SSDs randomly "remove" themselves

    The issue only happens on one RPi5 and not the other. It also only happens if both SSDs are attached (Samsung T7 Shield).

    Could it be the case? I'm using the fancy pants DeSalvo Inc Galvanic Case for the new board. Before I open it and put the board in a Flirc case to test if the issue persists, I figured I'd ask here and see if this was an issue anybody else has run into.

    I'm not sure if I'm hoping I got unlucky w/ a bad board or the case is the issue. I like the aesthetics of the case and my previous board would sometimes overheat in the flirc case if I'm playing a 4k hdr and downloading something via lftp at the same time, so I got the desalvo case in the hopes that would mitigate against overheating.

    EDIT: ok swapped boards and the issue doesn't persist w/ the old board in the new case.

    Anybody encountered this before?

    Edited once, last by fliz (July 8, 2025 at 8:52 PM).

    I'd guess the SSD's are connected via USB and likely the same internal hub/port complex, and the PSU (or the hub/port complex) can handle one drive being connected, but not two, resulting in disconnects when power draw is too high.

    • Try adding max_usb_current=1 to config.txt
    • Try connecting one device to a USB3 port, one to a USB2 port
    • Ensure the PSU is rated for 5V/5A (the official one is recommended)
    • Look for undervolt messages in the system log