Jump to content
Corsair Community

CMX256A-3200LL and CMX512-3200LLPRO


Recommended Posts

Hey RAM Guy,


I just purchased a new system


Athlon 3400+ Socket 754

Asus K8N-E Deluxe


I had a TWINX set from a couple years ago (each chip is marked CMX256A-3200LL). They work great in the machine and the latancies are auto detected at 2-2-2-6 200MHz.


With my system I purchased a CMX512-3200LLPRO which works fine by itself and auto detects at 3-3-3-8 200MHz.


On Corsair's website, all of these sticks are rated at 2-3-2-6.


My first question is: Did I get defective RAM because it only detects at 3-3-3-8???


Second, when I put all three sticks in my computer I get a message that says "System failed due to CPU overclocking". Is there a way I can get all the sticks working together???




Mike S

Link to comment
Share on other sites

  • 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;


Advanced Chipset:

Memclock Mode: Limit

Memclock Value: 2:1 (DDR400)

Bank Interleaving: 4/Enabled

Burst Length: 4

SDRAM CAS Latency: 2T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Active to Precharge Delay (tRAS): 6T

SDRAM Row Precharge (tRP): 2T

Hypertransport: 4X

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!

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Create New...