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Problems with CM2x512 5400C4 memory


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I have a great computer system that I built from the frame up using the following components:


ANTEC P180 case

Silverstone 600W PS (Dual SLI Ready)

Asus P5N32SLI-Deluxe (Intel Edition)

Intel Pentium D 830 CPU

Corsair CM2x512-5400C4 (x2) 1Gb

160GB WD Caviar SATA 2 HDD

Plextor 716SA DVD-RW

Mitsumi FDD with Flash Media Card Reader/Writer

PNY Verto 6800GS 256MB PCI-E Video Card (x2 SLI Config)


This system works just fine with just two RAM modules installed. However when I place another 2 modules of the same make and model, I eventually get either the blue screen o death or the system locks up while I am either using an app or playing a game...usually 30 mins or so. I have ruled out cooling as the issue buy placing a brand new Zalman 6 heat pipe cooling fan onto the CPU and increased the speed of all three cooling fan in the case. The internal temp at load is well below recommended specs for fan cooling.


I have Flashed the ASUS motherboard with the latest BIOS (3.10) and I have tested each pair of memory individually in this system. Both sets of RAM work great independantly, but not together.


The memory settings in the computer were set to recommended 1-1-1-12, I believe.


I would like to continue to use these four modules, however, is this a known problem with this mobo and chipset?


Any info you may have to aid me in fixing this problem would be great.



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  • Corsair Employees
The CPU you have is a 533 MHz CPU as I remember and if so the fatest memory you can run is 400 Mhz. Can you 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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  • Corsair Employees
Please set the Dim Voltage to 2.1 volts and then set the timings manually to the tested settings for the specific module you have, and then test the module/modules one at a time with http://www.memtest.org! If you still get errors, please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! However, if you get errors with both modules that would suggest some other problem and I would test them in another system or MB to be sure.
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