I use motherboard with 2 CPU and 6 DIMM (3 DIMM on each CPU). I run
decode-dimms and it detect 3 DIMM modules in the 3 slots but another 3
DIMM decode-dimms can't detect.
lm-sensors 3.3.3
decode-dimms in the i2c-tools 3.1.0-3 and even I tried rev.6068
kernel 2.6.32.20 and even I tried 3.4.2
motherboard - Supermicro X8DTG
modprobe i2c-i801
modprobe i2c-dev
modprobe i2c-core
modprobe eeprom
'i2cdetect 3' give table something like this
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- UU -- UU -- UU -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: 50 -- 52 -- 54 -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
ls /sys/bus/i2c/drivers/eeprom/
3-0050
3-0052
3-0054
i2c-dev...
i2c-dev...
i2c-dev...
decode-dimms give out something like this
$ decode-dimms
# decode-dimms version 6068 (2012-11-.. )
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/3-0050
Guessing DIMM is in bank 1
---=== SPD EEPROM Information ===---
EEPROM CRC of bytes 0-116 OK (0xF02A)
# of bytes written to SDRAM EEPROM 176
Total number of bytes in EEPROM 256
Fundamental Memory type DDR3 SDRAM
...
Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/3-0052
Guessing DIMM is in bank 3
---=== SPD EEPROM Information ===---
EEPROM CRC of bytes 0-116 OK (0x7134)
# of bytes written to SDRAM EEPROM 176
Total number of bytes in EEPROM 256
Fundamental Memory type DDR3 SDRAM
...
Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/3-0052
Guessing DIMM is in bank 5
---=== SPD EEPROM Information ===---
EEPROM CRC of bytes 0-116 OK (0x...)
# of bytes written to SDRAM EEPROM 176
Total number of bytes in EEPROM 256
Fundamental Memory type DDR3 SDRAM
...
Number of SDRAM DIMMs detected and decoded: 3
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