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CMX512-3500C2PT XMS3502v1.1 won't run in Dual Channel


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Here's my problem


Got two stick of Corsair Plat PC3500 v1.1 C2, which means it should use BH5 chips.


Tried running them in my Leadtek Ultra Delux Ultra 400 (nForce 2 Ultra) board at 200MHz timings of 2-2-2-11 at 2.9v, fails mem test

Lower it down to 199MHz, same settings and it's fine.

Try each stick on their own at 200Mhz, 2-2-2-11 @2.9v, no problem.

Tried putting them together again, wouldn't pass memtest. Have tried 2.5-3-3-11 @200Mhz with 2.9v, still fails memtest


Thought my mobo was playing up.

So placed them in an Abit NF2-S mobo with the same settings, 200Mhz, 2-2-2-11 @2.9v, mem test errors.

Currently trying 2.5-3-3-11 on the Abit board, but not holding my breath.


Does this indicate that these two sticks cannot run together in Dual Channel. Should I RMA them?

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  • Corsair Employees

I have 4 2600+ CPU and only one will O.C. to 200 FSB @ 1-1, but it's not 100% stable. I would suggest testing with these settings to make sure it's not the CPU topping out!

CPU Freq: 166 MHz

Memory Frequency: 100%

Dim Voltage to 2.7 Volts

Resulting Frequency: 166MHz

SDRAM CAS Latency: 2T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 2T

SDRAM Active to Precharge Delay (tRAS): 6T

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