Hi Jean, it seems that the ADT7475 is compatible with an ADT7463, so i have tried to use the lm85 driver. (The ADT7475 is missing the Vid Inputs.) My first attempd was to force the ADT7463 with modprobe lm85 force_adt7463:0,0x2e but this fails with ===== FATAL: Error inserting lm85 /lib/modules/2.6.16.21-0.13-smp/kernel/drivers/hwmon/lm85.ko): Unknown symbol in module, or unknown parameter (see dmesg) ==== After that i have added the verstep to lm85.c #define LM85_VERSTEP_ADT7475 0x69 and changed inside lm85_detect ... } else if( company == LM85_COMPANY_ANALOG_DEV && (verstep == LM85_VERSTEP_ADT7463 || verstep == LM85_VERSTEP_ADT7463C || verstep == LM85_VERSTEP_ADT7475) ) { kind = adt7463 ; now sensors give me the following infos: snip=============== adt7463-i2c-1-2e Adapter: SMBus nForce2 adapter at 1c40 V1.5: +0.000 V (min = +0.00 V, max = +3.32 V) VCore: +0.000 V (min = +0.00 V, max = +2.99 V) ALARM V3.3: +3.395 V (min = +0.00 V, max = +4.38 V) V5: +0.000 V (min = +0.00 V, max = +6.64 V) V12: +0.000 V (min = +0.00 V, max = +15.94 V) CPU_Fan: 2019 RPM (min = 0 RPM) fan2: 1420 RPM (min = 0 RPM) fan3: 1889 RPM (min = 0 RPM) fan4: 0 RPM (min = 0 RPM) CPU Temp: +0.25?C (low = +1?C, high = -1?C) ALARM FAULT Board Temp: +87.00?C (low = +1?C, high = -1?C) Remote Temp: +0.00?C (low = +1?C, high = -1?C) ALARM FAULT CPU_PWM: 0 Fan2_PWM: 0 Fan3_PWM: 0 vid: +0.000 V (VRM Version 2.4) snap=================== What do you think about this ? === Juergen