Issue #598 has been updated by Maximilian Brune.
What happens if you use one 8GB and one 32 GB? Ideally it doesn't get stuck even if only 8GB are shown in the OS. That way, you would at least have an easier time debugging. Regarding debugging possibilities: If you use an external flasher/programmer you can tell coreboot to save the serial logs in the flash. You can then use the flashprog/flashrom tooling to extract the logs from the flash. It you don't use an external flasher and only flash internally using your OS, it gets more tricky. Ideally I would wait until your serial adapter arrives (makes things a lot easier). In general coreboot offers to send logs to a serial UART, to the flash chip, into memory (that one only helps if you successfully boot to OS), to a USB device (although I have never tested this myself and it probably only works on some boards when it comes to earpy debugging) and a couple of other methods that are pretty special and therefore usually not applicable. ---------------------------------------- Bug #598: Lenovo m920x RAM compatibility issue https://ticket.coreboot.org/issues/598#change-2108 * Author: Dawid Wrobel * Status: New * Priority: Normal * Target version: none * Start date: 2025-06-04 * Affected versions: main ---------------------------------------- Hi there, I recently flashed my m902x with coreboot (25.03-643-g69a067a9d62c-dirty). Everything seemed to work fine until I tried upgrading the memory from a single 8GB stick to 2 x 32GB (Crucial CT2K32G4SFD832A, https://eu.crucial.com/memory/ddr4/CT2K32G4SFD832A). The system won't boot in any configuration (a single stick in either slot or both). I get no display out, the system stays on and stuck, apparently, with high CPU usage causing fans to kick in. I have no serial port in this system at the moment (backordered an extension module), but am wondering if it will be of any help and if there's any other way to debug it? Do note that the system *is* capable of running 64GB memory, as it was reported already, so I wonder if this is a matter of some SPD misconfiguration? Crucial lists the 2x16GB modules as compatible with this system (https://eu.crucial.com/compatible-upgrade-for/lenovo/thinkcentre-m920x-tiny#memory) and they have seemingly identical specs as the 2x32GB ones. -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: https://ticket.coreboot.org/my/account _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
