Hi Juerg, > > > > Trying family `SMSC'... Yes > > > > > > > > Found unknown chip with ID 0x8902 > > > > > > This is indeed unknown. Can you check the markings on the chip so that > > > we know what we're dealing with? From the product picture my guess is > > > it's the chip in the QFP package close to the IDE connector. It should > > > read something like SMSC xyz. > > > > There is chip marked SMSC SCH-5027D(not sure that D, might be 0)-NW > > > > According to spec which comes with MB it should be SMSC SC-5027D > > Can you run > i2cdetect -y 0 > Of course - here is output: 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- 08 -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- UU -- 30: 30 31 32 33 -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- -- 50: 50 51 52 53 -- -- -- -- -- -- -- -- -- -- -- -- 60: -- 61 -- 63 64 -- -- -- -- 69 -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Thanks for your time, Andrew