I found the information below interesting. What's with the variety of DIMM's all using the same IC's ("ProMOS 667MHZ, CL5, 0.09u 64Mx8 ETT") ?? Why pay extra for the 6400C4 when the cheaper standard 6400 uses the same IC's - is there any difference?
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Corsair IC Inquiry Thread
http://www.houseofhelp.com/forums/s...ead.php?t=44365
Value Select Modules
Value Select modules are built with RAMs that are procured at the wafer level and are packaged and tested to our specifications. As such, they are not available as individual ICs, only as modules. This approach allows us to ship product with very good performance characteristics, low product cost, and a very low return rate.
DDR2 - XMS
XMS, or eXtreme Memory Speed, is the process that Corsair uses to take ICs rated at one speed and verify/guarantee their operation at another speed. Since specifications have not been generated to accurately specify operating parameters, Corsair gives these parts an XMS rating. For example, since PC2400 does not exist according to any valid standards institution, Corsair parts are called XMS2400.
5400C4
CM2X1024-5400C4 XMS5402 v2.10 0628134-2 = Micron, 64Mx8, DDR2-533, CL4, Die Rev D
CM2X1024-5400C4 XMS5402 v5.2 0633071-3 = PCS DDR2, 675MHz, CL 4, 64x8 90nm ETT
CM2X1024-5400C4 XMS5402 v5.2 0633071-5 = PCS DDR2, 675MHz, CL 4, 64x8 90nm ETT
CM2X1024-5400C4 XMS5402 v7.1 0629230-11 = ProMOS 0.09u 64Mx8 ETT Rev E
6400
CM2X1024-6400 XMS6405 v1.4 0606096-2 = Micron, 64Mx8, DDR2-667, CL5, Die Rev D
CM2X1024-6400 XMS6405 v4.1 0609102-1 = Infineon AENEON, Die Rev B, 64M X 8 Rev B
CM2X1024-6400 XMS6405 v4.1 0626413-3 = Infineon AENEON, Die Rev B, 64M X 8 Rev B
CM2X1024-6400 XMS6405 v5.1 0634287-2 = ProMOS 667MHZ, CL5, 0.09u 64Mx8 ETT
CM2X1024-6400 XMS6405 v5.1 0631252-2 = ProMOS 667MHZ, CL5, 0.09u 64Mx8 ETT
CM2X1024-6400 XMS6405 v5.1 0631252-9 = ProMOS 667MHZ, CL5, 0.09u 64Mx8 ETT
CM2X1024-6400 XMS6405 v5.1 0633171-6 = ProMOS 667MHZ, CL5, 0.09u 64Mx8 ETT
CM2X1024-6400 XMS6405 v5.1 0629230-7 = ProMOS 667MHZ, CL5, 0.09u 64Mx8 ETT
6400C3
CM2X1024-6400C3 XMS6403v1.1 0619028-4 = Micron, 64Mx8, 2-667 CL5, Die Rev D
6400C4
CM2X1024-6400C4 XMS6404 v1.1 0626099-3 = Micron, 64Mx8, 2-667 CL5, Die Rev D
CM2X1024-6400C4 XMS6404 v1.2 0620097-1 = Micron, 64Mx8, 2-667 CL5, Die Rev D
CM2X1024-6400C4 XMS6404 v2.1 0635221-22 = ProMOS 667MHZ, CL5, 0.09u 64Mx8 ETT
6400PRO
CM2X1024-6400PRO XMS6405v1.1 0610028-1 = Micron, 64Mx8, DDR2-667, CL5, Die Rev D
CM2X1024-6400PRO XMS6405v3.1 0609115-2 = Infineon AENEON, Die Rev B, 64M X 8 Rev B
CM2X1024-6400PRO XMS6405v1.3 0610028-1 = Micron, 64Mx8, DDR2-667, CL5, Die Rev D
8500C5/C4
CM2X1024-8500C5 XMS8505v1.2 0620114-1 = Micron, 64Mx8, 2-667 CL5, Die Rev D
CM2X1024-8888C4D XMS8804v1.1 0634174-2 = Micron, 64Mx8, 2-667 CL5, Die Rev D
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