On Tue, 06 May 2008 22:44:07 +0200, achim wrote: > Now with that information i compared dumps of 0x70 at idle and load and > the really differ, even slightly in idle. It is a temperature sensor. > This interface is also there with the k8 cpu. However such an interface > is not mentioned in the BKDG for K8. Can be it's a sensor for the pwm > area. There are lots of things which can change between idle and load, not just temperature. > I figured out that the interface at 0x4c is the svi interface. I > compared dumps with different cpu and northbridge voltages and both make > a difference. Ah, I get it now. Apparently address bit 2 is inverted, so 000b in the register, means that the I2C address ends up in 100b. Which is the case of 0x4c (1001100b). This suggests that the hard-coded part of the address is 1001b for the 4 most-significant bits. > A collegue of mine tried i2cdetect 0 on his Abit AX78 (770 chipset, > SB600, and a ?w83627ehf sensor-chip. On his board it's the sensor chip > at 0x2e if i read the log file correct. > He's using an Phenom 9850BE and does not get the interfaces at 0x4c, > 0x57. Also he has no interface at 0x70. > > > # sensors-detect revision 5016 (2007-11-11 22:20:16 +0100) > > Next adapter: SMBus PIIX4 adapter at 0b00 (i2c-0) > > Client found at address 0x2e > > Probing for `SPD EEPROM'... Yes > > (confidence 8, not a hardware monitoring chip) > > Probing for `SPD EEPROM'... Yes > > (confidence 8, not a hardware monitoring chip) > > Probing for Super-I/O at 0x2e/0x2f > > Trying family `VIA/Winbond/Fintek'... Yes > > Found `Winbond W83627DHG Super IO Sensors' Success! > > (address 0x290, driver `w83627ehf') > > AMD K10 thermal sensors... Success! > > (driver `to-be-written') > > Driver `w83627ehf' (should be inserted): > > Detects correctly: > > * ISA bus, address 0x290 > > Chip `Winbond W83627DHG Super IO Sensors' (confidence: 9) > > Driver `to-be-written' (should be inserted): > > Detects correctly: > > * Chip `AMD K10 thermal sensors' (confidence: 9) This is incomplete so it is impossible to say if there's a sensor chip or something else at SMBus address 0x2e. While it is a common address for sensor chips, we've seen on your board that other chips can live there. But I doubt it, as the Super-I/O chips has sensors, too. > > > > $ i2cdetect -l > > Code: > > i2c-0 unknown SMBus PIIX4 adapter at 0b00 N/A > > $ sudo i2cdetect 0 > > Code: > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > > 00: -- -- -- -- -- -- -- -- -- -- -- -- -- > > 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2e -- > > 30: -- -- -- -- -- -- -- -- 38 -- -- -- -- -- -- -- > > 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > > 50: 50 51 -- -- -- -- -- -- -- -- -- -- -- -- -- -- > > 60: -- -- -- -- -- -- -- -- -- 69 -- -- -- -- -- -- > > 70: -- -- -- -- -- -- -- -- > > $ sudo i2cdump 0 0x2e > > Code: > > 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef > > 00: c5 0f 00 00 00 00 00 c0 14 62 ff ff ff ff ff ff ??.....??b...... > > 10: 02 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ?............... > > 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > 40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ > > f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Doesn't look like anything I know. But it also doesn't seem to be the same chip as you have on your own boards. -- Jean Delvare
