# decode-dimms version 4.3

Memory Serial Presence Detect Decoder
By Philip Edelbrock, Christian Zuckschwerdt, Burkart Lingner,
Jean Delvare, Trent Piepho and others


Decoding EEPROM: /sys/bus/i2c/drivers/ee1004/10-0051
Guessing DIMM is in                              bank 2
Kernel driver used                               ee1004

---=== SPD EEPROM Information ===---
EEPROM CRC of bytes 0-125                        OK (0xA665)
# of bytes written to SDRAM EEPROM               384
Total number of bytes in EEPROM                  512
Fundamental Memory type                          DDR4 SDRAM
SPD Revision                                     1.0
Module Type                                      UDIMM
EEPROM CRC of bytes 128-253                      OK (0x27DE)

---=== Memory Characteristics ===---
Maximum module speed                             2133 MT/s (PC4-17000)
Size                                             32768 MB
Banks x Rows x Columns x Bits                    16 x 17 x 10 x 64
SDRAM Device Width                               8 bits
Ranks                                            2
Rank Mix                                         Symmetrical
Primary Bus Width                                64 bits
AA-RCD-RP-RAS (cycles)                           15-15-15-36
Supported CAS Latencies                          24T, 23T, 22T, 21T, 20T, 19T, 18T, 17T, 16T, 15T, 14T, 13T, 12T, 11T, 10T, 9T, 8T, 7T

---=== Timings at Standard Speeds ===---
AA-RCD-RP-RAS (cycles) as DDR4-2133              15-15-15-36
AA-RCD-RP-RAS (cycles) as DDR4-1866              13-13-13-31
AA-RCD-RP-RAS (cycles) as DDR4-1600              11-11-11-27

---=== Timing Parameters ===---
Minimum Cycle Time (tCKmin)                      0.938 ns
Maximum Cycle Time (tCKmax)                      1.500 ns
Minimum CAS Latency Time (tAA)                   13.500 ns
Minimum RAS to CAS Delay (tRCD)                  13.500 ns
Minimum Row Precharge Delay (tRP)                13.500 ns
Minimum Active to Precharge Delay (tRAS)         33.000 ns
Minimum Active to Auto-Refresh Delay (tRC)       46.500 ns
Minimum Recovery Delay (tRFC1)                   550.000 ns
Minimum Recovery Delay (tRFC2)                   350.000 ns
Minimum Recovery Delay (tRFC4)                   260.000 ns
Minimum Four Activate Window Delay (tFAW)        21.000 ns
Minimum Row Active to Row Active Delay (tRRD_S)  3.700 ns
Minimum Row Active to Row Active Delay (tRRD_L)  5.300 ns
Minimum CAS to CAS Delay (tCCD_L)                5.356 ns

---=== Other Information ===---
Package Type                                     Monolithic
Maximum Activate Count (MAC)                     Unlimited
Post Package Repair                              Not supported
Module Nominal Voltage                           1.2 V
Thermal Sensor                                   No

---=== Physical Characteristics ===---
Module Height                                    32 mm
Module Thickness                                 2 mm front, 2 mm back
Module Reference Card                            B revision 0

---=== Manufacturer Data ===---
Module Manufacturer                              Corsair
DRAM Manufacturer                                Samsung
Part Number                                      CMK64GX4M2D3600C18


Decoding EEPROM: /sys/bus/i2c/drivers/ee1004/10-0053
Guessing DIMM is in                              bank 4
Kernel driver used                               ee1004

---=== SPD EEPROM Information ===---
EEPROM CRC of bytes 0-125                        OK (0xA665)
# of bytes written to SDRAM EEPROM               384
Total number of bytes in EEPROM                  512
Fundamental Memory type                          DDR4 SDRAM
SPD Revision                                     1.0
Module Type                                      UDIMM
EEPROM CRC of bytes 128-253                      OK (0x27DE)

---=== Memory Characteristics ===---
Maximum module speed                             2133 MT/s (PC4-17000)
Size                                             32768 MB
Banks x Rows x Columns x Bits                    16 x 17 x 10 x 64
SDRAM Device Width                               8 bits
Ranks                                            2
Rank Mix                                         Symmetrical
Primary Bus Width                                64 bits
AA-RCD-RP-RAS (cycles)                           15-15-15-36
Supported CAS Latencies                          24T, 23T, 22T, 21T, 20T, 19T, 18T, 17T, 16T, 15T, 14T, 13T, 12T, 11T, 10T, 9T, 8T, 7T

---=== Timings at Standard Speeds ===---
AA-RCD-RP-RAS (cycles) as DDR4-2133              15-15-15-36
AA-RCD-RP-RAS (cycles) as DDR4-1866              13-13-13-31
AA-RCD-RP-RAS (cycles) as DDR4-1600              11-11-11-27

---=== Timing Parameters ===---
Minimum Cycle Time (tCKmin)                      0.938 ns
Maximum Cycle Time (tCKmax)                      1.500 ns
Minimum CAS Latency Time (tAA)                   13.500 ns
Minimum RAS to CAS Delay (tRCD)                  13.500 ns
Minimum Row Precharge Delay (tRP)                13.500 ns
Minimum Active to Precharge Delay (tRAS)         33.000 ns
Minimum Active to Auto-Refresh Delay (tRC)       46.500 ns
Minimum Recovery Delay (tRFC1)                   550.000 ns
Minimum Recovery Delay (tRFC2)                   350.000 ns
Minimum Recovery Delay (tRFC4)                   260.000 ns
Minimum Four Activate Window Delay (tFAW)        21.000 ns
Minimum Row Active to Row Active Delay (tRRD_S)  3.700 ns
Minimum Row Active to Row Active Delay (tRRD_L)  5.300 ns
Minimum CAS to CAS Delay (tCCD_L)                5.356 ns

---=== Other Information ===---
Package Type                                     Monolithic
Maximum Activate Count (MAC)                     Unlimited
Post Package Repair                              Not supported
Module Nominal Voltage                           1.2 V
Thermal Sensor                                   No

---=== Physical Characteristics ===---
Module Height                                    32 mm
Module Thickness                                 2 mm front, 2 mm back
Module Reference Card                            B revision 0

---=== Manufacturer Data ===---
Module Manufacturer                              Corsair
DRAM Manufacturer                                Samsung
Part Number                                      CMK64GX4M2D3600C18


Number of SDRAM DIMMs detected and decoded: 2