Issue #598 has been updated by Dawid Wrobel.
Well, oddly, I flashed coreboot back and for whatever reason it will boots now with a single 32GB stick in DIMM1 slot only. It will also boot with 32GB in DIMM1 and 8GB stick in DIMM2, but the latter does not get detected. It won't boot with a single stick in DIMM2 (although I think this is by design, per the manual https://download.lenovo.com/pccbbs/thinkcentre_pdf/m920x_ughmm_en.pdf) nor with two 32GB sticks — although I am not getting fan spinning this time, so something else is definitely happening here. So all in all, this sounds like https://ticket.coreboot.org/issues/592#change-2093 issue... except I am running 25.03-643-g69a067a9d62c-dirty, which as far as I understand should have this fix included already. ---------------------------------------- Bug #598: Lenovo m920x RAM compatibility issue https://ticket.coreboot.org/issues/598#change-2109 * 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]
