On Thu, 11 Apr 2019 14:16:57 +0100, Dreamcat4 wrote: > Hey there! > I have just run decode-dimms on this brand new ram kit. After > following instructions here: > > https://www.richud.com/wiki/Ubuntu_See_Live_RAM_Timings_Decode_DIMMS > > And whilst the command executes, and prints some basic information > about my memory. It unfortunately cannot see anything more than what > gets printed below. So I was just hoping that this might simply be > because the program does not know how to handle / decode this ram. And > if I can be any help, for improving support. Then please let me know > > [id:~] $ sudo modprobe i2c-i801 > [id:~] $ sudo i2cdetect -l > i2c-1 i2c NVIDIA i2c adapter 5 at 1:00.0 I2C adapter > i2c-2 smbus SMBus I801 adapter at f000 SMBus adapter > i2c-0 i2c NVIDIA i2c adapter 4 at 1:00.0 I2C adapter > [id:~] $ sudo i2cdetect 2 > WARNING! This program can confuse your I2C bus, cause data loss and worse! > I will probe file /dev/i2c-2. > I will probe address range 0x03-0x77. > Continue? [Y/n] y > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: -- -- -- -- -- 08 -- -- -- -- -- -- -- > 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 30: 30 -- -- -- 34 35 -- -- -- -- -- -- -- -- -- -- > 40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- -- > 50: UU -- UU -- -- -- -- -- -- -- -- -- -- -- -- -- > 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 70: -- -- -- -- -- -- -- -- > [id:~] $ sudo decode-dimms > # decode-dimms version $Revision$ > Memory Serial Presence Detect Decoder > By Philip Edelbrock, Christian Zuckschwerdt, Burkart Lingner, > Jean Delvare, Trent Piepho and others > > > Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/2-0050 > Guessing DIMM is in bank 1 > > ---=== SPD EEPROM Information ===--- > EEPROM Checksum of bytes 0-62 OK (0x00) > SPD Revision Invalid > Fundamental Memory type Unknown (0x00) > > ---=== Manufacturing Information ===--- > Manufacturer GTE > Custom Manufacturer Data 9B 00 19 10 E1 C4 CF > ("???????") > Manufacturing Location Code 0x8D > Part Number BLS16G4D30AESB.M16 For DDR4 memory you need a different kernel driver. Remove the eeprom (or at24) driver and load the ee1004 driver instead. Then decode-dimms should work. If the ee1004 driver is not available in your distribution, let me know and I'll prepare a standalone driver for you. -- Jean Delvare SUSE L3 Support
