On Thu, 11 Apr 2019 18:17:39 +0200, Jean Delvare wrote: > For DDR4 memory you need a different kernel driver. Remove the eeprom > (or at24) driver and load the ee1004 driver instead. Then decode-dimms > should work. Oh, I forgot... The ee1004 driver does not currently instantiate devices automatically. You'll have to let it know where your SPD EEPROMs are: # modprobe ee1004 # echo ee1004 0x50 > /sys/bus/i2c/devices/i2c-2/new_device # echo ee1004 0x52 > /sys/bus/i2c/devices/i2c-2/new_device > If the ee1004 driver is not available in your distribution, let me know > and I'll prepare a standalone driver for you. It's ready if you need it: http://jdelvare.nerim.net/devel/lm-sensors/drivers/ee1004/ Generic instructions for building a standalone driver are at: http://jdelvare.nerim.net/devel/lm-sensors/drivers/INSTALL -- Jean Delvare SUSE L3 Support