I have been looking now for just under a month at a problem with the above model of IBM kit The problem lies with the sensors in the machine erroing with the messages 'Voltage sensor x status could not be determined' this happens for 1-6 of the voltage sensors, the system enclosre sensor, temperature sensors and fan sensor! I have IBM support looking at this but they have, as yet, come back with nothing. The sensors do not happen everyday. They happen at dfferent days at different times, sometime even for two-three weeks we can go without errors! If anyone has heard of this before pls do not hesitate as it is beggining to drain my brain!!!! Justin