born@born:~$ sudo perl decode-dimms.pl

Memory Serial Presence Detect Decoder
By Philip Edelbrock, Christian Zuckschwerdt, Burkart Lingner,
Jean Delvare and others
Version 2.10.2


Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/0-0050
Guessing DIMM is in                             bank 1

---=== SPD EEPROM Information ===---
EEPROM Checksum of bytes 0-62                   OK (0x37)
# of bytes written to SDRAM EEPROM              128
Total number of bytes in EEPROM                 256
Fundamental Memory type                         DDR2 SDRAM
SPD Revision                                    1.2

---=== Memory Characteristics ===---
Maximum module speed                            930MHz (PC7400)
Size                                            1024 MB
tCL-tRCD-tRP-tRAS                               5-4-4-12
Supported CAS Latencies                         5, 4, 3
Minimum Cycle Time (CAS 5)                      3.75 ns
Maximum Access Time (CAS 5)                     0.5 ns
Minimum Cycle Time (CAS 4)                      3.75 ns
Maximum Access Time (CAS 4)                     0.5 ns
Minimum Cycle Time (CAS 3)                      5 ns
Maximum Access Time (CAS 3)                     0.6 ns

---=== Manufacturing Information ===---
Manufacturer                                    Infineon (formerly Siemens)
Manufacturing Location Code                     S
Part Number                                     64T128021HDL3.7B  
Revision Code                                   0x2208
Manufacturing Date                              2006-W29
Assembly Serial Number                          0x0D01C221


Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/0-0052
Guessing DIMM is in                             bank 3

---=== SPD EEPROM Information ===---
EEPROM Checksum of bytes 0-62                   OK (0x37)
# of bytes written to SDRAM EEPROM              128
Total number of bytes in EEPROM                 256
Fundamental Memory type                         DDR2 SDRAM
SPD Revision                                    1.2

---=== Memory Characteristics ===---
Maximum module speed                            930MHz (PC7400)
Size                                            1024 MB
tCL-tRCD-tRP-tRAS                               5-4-4-12
Supported CAS Latencies                         5, 4, 3
Minimum Cycle Time (CAS 5)                      3.75 ns
Maximum Access Time (CAS 5)                     0.5 ns
Minimum Cycle Time (CAS 4)                      3.75 ns
Maximum Access Time (CAS 4)                     0.5 ns
Minimum Cycle Time (CAS 3)                      5 ns
Maximum Access Time (CAS 3)                     0.6 ns

---=== Manufacturing Information ===---
Manufacturer                                    Infineon (formerly Siemens)
Manufacturing Location Code                     S
Part Number                                     64T128021HDL3.7B  
Revision Code                                   0x2208
Manufacturing Date                              2006-W29
Assembly Serial Number                          0x0D01C222


Number of SDRAM DIMMs detected and decoded: 2
born@born:~$