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Bad stick of Ram.


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two and a half years ago i bought two sticks of Corsair CMX512-3200C2.


Last week my system started behaving very strangely, was locking up/pausing/slowed/rebooted when a certain amount of processes were loaded. Suspecting the memory i downloaded a program called memtest 87+.


Ran the test first with both sticks in, it found 1 error ar 183MB, and around 800 between 463-483MB (the memory used when system started acting up, programs freezing, reboots etc).

I then tested the two sticks individually, and one stick reported the errors again, while the other checked out ok.


At the time of those tests my settings were 2T-3-3-6.

I then found some info that i should change CAS Latency to 2.5T due me having an AMD system.


Ran the memtest 87+ again, and the 1 error at 183MB was gone, but the 800 odd errors between 463-483MB remained. (Failed at test 5 in the program).


Running my system with this solo stick in, and it's much more stable now.



Mainboard is Asus A7N8X 2.0.

Processor AMD XP2200+



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  • Corsair Employees

Please 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: 133 MHz (266 FSB)

System Performance: User Define

Memory Frequency: 125%

Resulting Frequency: 166 MHz (333 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: 2.7 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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