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TWINX2048-3200C2 is not 2-3-3-6 1T


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Ordered this matched set of RAM, and the timings are not what they should be. 2 days out of the box

Cpu-z and SiSoft both report 3-3-3-8 capable timings, but this RAM should be 2-3-3-6.


I was warned that with Corsair memory, you never know what you get regardless of what it says.


Why would Corsair state and ship something that isn't what it should be?



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Welcome to the forums, lexaudio!


With all of the "C2" parts, the SPD chip (which CPU-Z reads and reports under the SPD tab) is programmed to JEDEC specs of 3-3-3-8 at DDR400.


This is done to maximize compatibility, but does not mean you were cheated. The TwinX2048-3200C2 modules should run at 2-3-3-6 on your system without a problem.


When you boot, go into the BIOS, go to the advanced options page and set the memory latencies to "Manual" so that you have access to the individual timings.


Set these:


CAS - 2T

RAS to CAS Delay - 3

Row Precharge - 3

Cycle Time (tRAS) - 6


DDR Voltage - 2.75


All the others should be default/auto!




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I'll give that a try. My a tech feels it is wierd that it is rated for 3338 but tested at 2336.


Smart marketing I guess.


If it doesn't work, he suggests going with another brand that is RATED and tested at those clock speeds.


I've been using Corsair for years, and have been happy.

This one thing will be my end all product switch if I have problems.


Any other last thoughts before I test.



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They ARE rated AND tested @ 2-3-3-6. For whatever reason, all C2s have their SPD chips set to 3-3-3-8, but they are meant to be run @ 2-3-3-6 (which means u just have to set the timings manually), and more importantly, they are guaranteed and warrantied @ 2-3-3-6. In otherwords, Corsair stands behind their product and says they WILL run @ 2-3-3-6 on current production AMD and Intel systems (2.5-3-3-6 on Athlon XP setups).
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