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Bad CMX512-3200C2 modules


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I have been having trouble with this pair of modules so I ran memtest on them. The first module came up with errors at the 510.5mb area in multiple tests. The next module came up with errors in 510.5, 240.3 and 256.3 in multiple tests. Is this enough to constitute and RMA as I am past the 30 warranty from the store I purchased them from?



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  • Corsair Employees

I would agree with wired, that would suggest some other problem. Can you tell me the make and model of MB you have and the CPU speed and its FSB?

In addition, please tell me the bios settings you had set for both CPU and memory!

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It is a TwinX package.

The motherboard is a Asus A7N8X-E Deluxe with a Athlon XP 3200 400mhz front side.

My memory settings are:

Mem Frequency is 100%

Dim Voltage is 2.7 Volts

Resulting Frequency 200 MHz

CAS Latency 2.5


tRP 3T



I swapped out the motherboard at first b/c I though that might be the problem. Same issue.

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  • Corsair Employees

Please make sure that you set the jumper settings on the board from the default 1-2 to 2-3 and try it on slot 1&3 or 2&3 (either one); also make sure that you have the latest BIOS for your MB and load Setup/Optimized default settings, and try the following BIOS settings;

TwinX1024 or TwinX512-3200C2

CPU Freq: 200 MHz (400 FSB)

System Performance: User Define

Memory Frequency: 100%

Resulting Frequency: 200 MHz (400 FSB)

Memory Timing: User Define

SDRAM CAS Latency: 2.5T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 3T

SDRAM Active to Precharge Delay (tRAS): 6T

DDR Reference Voltage: 2.8 Volts

AGP Voltage: Default *unless you have ATI (9200 or 9600) or NVIDIA (5200 or 5700) then 1.6 Volts suggested!*

All other settings are motherboards defaults

Then please test them one at a time with http://www.memtest.org and let’s make sure it's not some other issue! I would run the test for at least 2-3 passes to be sure!

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