Hi Mark, Rudolf, (Mark, please always reply to the list rather than individual members.) > Linux digittar 2.6.15-19-k7 #1 SMP PREEMPT Mon Mar 20 18:21:44 UTC 2006 i686 GNU/Linux > (...) > 0000:00:0a.1 0c05: 10de:0264 (rev a2) > (...) > 0000:00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a2) OK, it's probably just a matter of adding this PCI ID to the i2c-nforce2 driver. It would be nice if Nvidia could be somewhat consistent in their product names... Mark, please try the following (as root): modprobe i2c-nforce2 echo "10de 0264" > /sys/bus/pci/drivers/nForce2_smbus/new_id It should bring the SMBus to work. If it does, we'll add that ID to the driver permanently. Thanks, -- Jean Delvare