On Wed, 29 Jan 2014 11:48:47 -0800, Alun Evans wrote: > >> This is a big board with many DDR3 slots. > > Heh, this is a 8-DIMM board. We’ve just ordered a 24-DIMM board, with an eye to a 48-DIMM board. Right, 8 DIMMs would normally not require multiplexing. But vendors like to reuse designs and your 8-DIMM board is probably a "small" version of something bigger. My Asus Z8NA-D6 has only 6 DIMMs but it has an I2C multiplexer anyway. > > (...) > > I would suspect it is GPIO; the i2c muxes are typically at address 0x7x > > which is empty in above i2cdetect log. The DSDT might give a hint if we > > are really lucky. Not that I am any good in decoding DSDTs, though ;-). > > I followed : https://01.org/linux-acpi/utilities > > And there is this hunk: > > OperationRegion (GPIO, SystemIO, GPBS, 0x20) > Field (GPIO, DWordAcc, NoLock, Preserve) > { > Offset (0x0C), > GLVL, 32, > Offset (0x18), > GBLK, 32 > } And can you tell us what GPBS is? -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
