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Bad Memory


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I have a bad memory module. CMX512-3200C2PT. It fails memtest on a single bit using pattern bfbfbfbf gets bfbfbebf, one location only. The test has been run 3 times with the same results. I would like to RMA. They were bought as a pair of TWINX. What do I need to do to RMA?
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  • Corsair Employees
Can you tell me the make and model of MB you have along with the CPU speed and it’s FSB as well? In addition, please tell me the bios settings you have set for both CPU and memory and any performance settings that you may have set?
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ASUS A8V Deluxe

AMD Athalon64 3800+

no overclocking


memory set to auto

also tried memory with manual settings at 2 3 2 6 with same result


Also tried in another system with same result a single bit error one location.

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  • Corsair Employees

Please put the memory module on slot 1 & 3; make sure that you have the latest BIOS for your MB, and set the following settings on your BIOS;

TwinX1024 or TwinX512-3200C2PT

Advanced Chipset:

Memclock Mode: Limit

Memclock Value: 2:1 (DDR400)

Bank Interleaving: 4/Enabled

Burst Length: 4

SDRAM CAS Latency: 2.5T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Active to Precharge Delay (tRAS): 6T

SDRAM Row Precharge (tRP): 3T

Jumper Free/Frequency Voltage Control:

Spread Spectrum: Enabled

CPU FSB Clock: 200

DDR Voltage: 2.7/2.75 Volts

All other settings should be set to default settings!

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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