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DDR2 RDIMM

JEDEC
Raw
Card		 DDR2 RDIMM
Module Configurations		 Form Factor Bus width (bits) Bandwidth(MB/sec) Data Rate
(Mb/sec
per pin)		 Height PCB Rev Notes DIMM
with
512Mb		 DIMM
with
1Gb		 DIMM
with
2Gb		 Last update
A (1Rank x8) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1   512MB 1GB 2GB Feb. 6, 2004
B (2Rank x8) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1   1GB 2GB 4GB Feb. 6, 2004
C (1Rank x4) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1   1GB 2GB 4GB Feb. 6, 2004
D (2Rank x4, stacked) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1.1        Address parity 2GB 4GB 8GB Aug. 22, 2006
E (2Rank x4, stacked) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1 Address parity 2GB 4GB 8GB Feb. 6, 2004
F (1Rank x8, with parity) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1.01 Address parity 512MB 1GB 2GB Aug. 22, 2006
G (2Rank x8, with parity) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1.01 Address parity 1GB 2GB 4GB May. 31, 2004
H (1Rank x4, with parity) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1.01 Address parity 1GB 2GB 4GB Feb. 6, 2004
J (2Rank x4, planar) RDIMM x64/x72 ECC PC2-5300 667 30mm (1.18") 3.3 Address parity 2GB 4GB 8GB Aug. 22, 2006
K (2Rank x4, stacked) RDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 1.01 Address parity 2GB 4GB 8GB Apr. 5, 2004
L (2Rank x4, planar) RDIMM x64/x72 ECC PC2-6400 800 30mm (1.18") 3.4 Address parity 2GB 4GB 8GB Aug. 22, 2006
M (4Rank x4, stacked) RDIMM x64/x72 ECC PC2-5300 667 30mm (1.18") 3.XX Address parity 4GB 8GB 16GB Aug. 22, 2006
N (4Rank x8, planar) RDIMM x64/x72 ECC PC2-5300 667 30mm (1.18") 3.3 Address parity 2GB 4GB 8GB Dec. 05, 2006
P (2Rank x4, stacked) RDIMM x64/x72 ECC PC2-5300 667 30mm (1.18") 3.1 Address parity 2GB 4GB 8GB Feb. 22, 2005
R (1Rank x8, planar, VLP) VLPRDIMM x64/x72 ECC PC2-6400 800 18.3mm (0.72") 3.3 Address parity 512MB 1GB 2GB Aug. 22, 2006
T (2Rank x8, planar, VLP) VLPRDIMM x64/x72 ECC PC2-5300 667 18.3mm (0.72") 0.31 Address parity 1GB 2GB 4GB Aug. 22, 2006
U (1Rank x4, planar, VLP) VLPRDIMM x64/x72 ECC PC2-5300 667 18.3mm (0.72") 0.41 Address parity 1GB 2GB 4GB Aug. 22, 2006
V (1Rank x4, planar, VLP) VLPRDIMM x64/x72 ECC PC2-6400 800 18.3mm (0.72") 3.3 Address parity 1GB 2GB 4GB Aug. 22, 2006
W (1Rank x4, stacked, VLP) VLPRDIMM x64/x72 ECC PC2-5300 667 18.3mm (0.72") 0.3 Address parity 1GB 2GB 4GB Aug. 22, 2006
Y (1Rank x4, stacked, VLP) VLPRDIMM x64/x72 ECC PC2-4200 533 18.3mm (0.72") 3.3 Address parity 1GB 2GB 4GB Aug. 22, 2006
AA (2Rank x4, flex) FLEXRDIMM x64/x72 ECC PC2-4200 533 30mm (1.18") 0.1   2GB 4GB 8GB Aug. 22, 2006
AB (4Rank x4, flex) FLEXRDIMM x64/x72 ECC PC2-5300 667 30mm (1.18") 0.1   4GB 8GB 16GB dec. 12, 2006
AC (1Rank x8, planar, VLP) VLPRDIMM x64/x72 ECC PC2-6400 800 18.3mm (0.72") 0.1 register rotated 512MB 1GB 2GB dec. 12, 2006

DDR2 UDIMM

JEDEC
Raw
Card		 DDR2 UDIMM
Module Configurations		 Form Factor Bus width (bits) Bandwidth(MB/sec) Data Rate
(Mb/sec
per pin)		 Height PCB Rev Notes DIMM
with
512Mb		 DIMM
with
1Gb		 DIMM
with
2Gb		 Last update
A 1rank x8, planer UDIMM x64/72 ECC PC2-4200 533 30mm (1.18") A0.5 x64/72 ECC 512MB 1GB 2GB Jun.2, 2003
B 2ranks x8, planer UDIMM x64/72 ECC PC2-4200 533 30mm (1.18") B1.0 x64/72 ECC 1GB 2GB 4GB May. 28, 2004
C 1rank x16,planer UDIMM x64 PC2-4200 533 30mm (1.18") C1.0 nonECC only 256MB 512MB 1GB May. 18, 2004
D 1Rank x8, planer UDIMM x64 PC2-6400 800 30mm (1.18") D0.32 nonECC only 512MB 1GB 2GB Sept. 20, 2004
E 2Rank x8, planer UDIMM x64 PC2-6400 800 30mm (1.18") E0.5 nonECC only 1GB 2GB 4GB Sept. 2, 2004
F 1Rank x8, planer UDIMM x64/72 ECC PC2-6400 800 30mm (1.18") F0.32 x64/72 ECC 512MB 1GB 2GB Sept. 20, 2004
G 2Rank x8, planer UDIMM x64/72 ECC PC2-6400 800 30mm (1.18") G1.0 x64/72 ECC 1GB 2GB 4GB Nov. 5, 2004
H 2Rank x16, planer UDIMM x64 PC2-6400 800 30mm (1.18") H1.0 nonECC only 512MB 1GB 2GB Aug. 4, 2005

DDR2 Small DIMM

JEDEC
Raw
Card		 DDR2 small DIMM
Module Configurations		 Form Factor Bus width (bits) Bandwidth(MB/sec) Data Rate
(Mb/sec
per pin)		 Height PCB Rev Notes DIMM
with
512Mb		 DIMM
with
1Gb		 DIMM
with
2Gb		 Last update
A 2rank x16, planer micro-DIMM x64 PC2-4200 533 30mm (1.18") V050   256MB 512MB 1GB Mar. 8, 2005
B 1rank x16, planer micro-DIMM x64 PC2-4200 533 30mm (1.18") V050   512MB 1GB 2GB Mar. 8, 2005
C   micro-DIMM x64     30mm (1.18")     512MB 1GB 2GB  
A 2 rank x16, planer SO-DIMM x64 PC2-6400 800 30mm (1.18") V2.1   512MB 1GB 2GB Oct. 27, 2004
B 1rank x8, planer SO-DIMM x64 PC2-6400 800 30mm (1.18") V2.1   512MB 1GB 2GB Oct. 29, 2004
C 1rank x16, planer SO-DIMM x64 PC2-6400 800 30mm (1.18") V2.1   256MB 512MB 1GB Oct. 27, 2004
D 2 rank x8, stacked SO-DIMM x64 PC2-6400 800 30mm (1.18") V210   1GB 2GB 4GB Oct. 29, 2004
E 2 rank x8, planer SO-DIMM x64 PC2-6400 800 30mm (1.18") V2.1 Thermal Sensor 1GB 2GB 4GB Feb. 3, 2005
F 2 rank x8, planer SO-DIMM x64 PC2-6400 800 30mm (1.18") Rev1.0 Thermal Sensor 1GB 2GB 4GB Nov. 15, 2004
A 1rank x16, planer SO-CDIMM x64/72 ECC PC2-6400 800 30mm (1.18") 0.1 PLL 256MB 512MB   Jun. 6, 2006
B 1rank x8,planer SO-CDIMM x64/72 ECC PC2-6400 800 30mm (1.18") 0.1 PLL 512MB 1GB 2GB May 9 2006
C 2rank x8,planer SO-CDIMM x64/72 ECC PC2-6400 800 30mm (1.18")   PLL 1GB 2GB    
A 1rank x8,planer SO-RDIMM x64/72 ECC PC2-6400 800 30mm (1.18")   PLL, registered 512MB 1GB 2GB  
B 2rank x8,planer SO-RDIMM x64/72 ECC PC2-6400 800 30mm (1.18")   PLL, registered 1GB 2GB    
A 1rank x8, planer Mini-RDIMM x64/72 ECC PC2-4200 533 30mm (1.18") V110 registered 512MB 1GB 2GB Oct. 24 2005
B 1rank x16, planer Mini-RDIMM x64/72 ECC PC2-5300 667 30mm (1.18") V10 registered 256MB 512MB 1GB Nov. 1 2004
  1rank x8, planer Mini-UDIMM x64/72 ECC PC2-4200 533 30mm (1.18")     512MB 1GB 2GB  
  1rank x16, planer Mini-UDIMM x64/72 ECC PC2-5300 667 30mm (1.18")     256MB 512MB 1GB  

 

RAMpedia is a DRAM memory encyclopedia and reference tool
to help computer hardware board designers with DRAM memory subsystems.
This information is provided as a courtesy by Virtium Technology.
www.virtium.com
Virtium Technology at www.virtium.com