The Memory Module
The Corsair CMX256A-3200LL is a double-sided module with eight DDR SDRAM chips, four on each side. I tried to remove the heat spreader but the thermal tape was tightly adherent to the memory chips.
Surprisingly, there were no detailed specifications for this module. In fact, Corsair does not provide detailed information on any of their memory modules. What amazed me most is the fact that they don't even tell you what the recommended voltage for their modules is! Is that a discreet way of hinting that overvolting is okay with Corsair?
Anyway, these are the only specifications I could find :-
Module Capacity |
256 MB |
Speed Grade |
PC3200 |
Actual Memory Clock |
200 MHz |
Data Transfers Per Clock |
2 |
Maximum Transfer Rate |
3.2 GB/s |
Latency |
2-2-2-6 |
The earlier revisions of Corsair's PC3200 Low Latency modules ran with a 2-2-2-6 timing. But Corsair recommends a timing of 2-3-2-6 for all current PC3200LL modules. This means increasing the RAS-to-CAS timing from 2 cycles to 3 cycles.
This is because they use a different memory chip for their newer PC3200 modules. The older V1.1 module used the Winbond 'BH-5' chips while the newer V1.2 module uses the Winbond 'CH-5'. The newer CH-5 chips cannot work properly with the RAS-to-CAS Delay set to 2 cycles.
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