Salut, Jean! I modified the code for decode-dimms.pl as you suggested. Now only the first 128 bytes of the SPD EEPROM are read, moreover this is done in a central sub routine rather than at 8 different places in the code. The bank number guessing is now also working with the sysfs. The new version can be found at http://www.bollchen.de/decode-dimms.pl and the output of diff -u is located at http://www.bollchen.de/diff.out Let me know what you think. Bye, Burkart