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A7N8X Deluxe & TWINX1024-3200C2PT


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A few weeks ago, I purchased a VS1GBKIT400 kit from newegg to increase the amount of RAM in my machine from 512M to 1G. Note that the ValueSelect was replacing XMS memory and my motherboard is an ASUS A7N8X Deluxe. I made the necessary adjustments to the BIOS, rebooted and started running memtest. I soon had numerous errors. Fast forward a few days--I still hadn't found this site yet--and I had convinced myself newegg had sent me bad RAM so I RMA'd the memory.


I ended up ordering TWINX1024-3200C2PT after finding this site and using RAM GUY's memory configurator website. Unfortunately, the results were the same.


Here are the BIOS settings I'm currently using:

CAS: 2.5

RAS to CAS Delay: 3

Row Precharge: 3

Active to Precharge Delay: 6

VCore: 1.650

DDR Ref. Voltage: 2.7


Any suggestions?



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Can you tell me the bios settings you have set for both CPU and memory and any performance settings that you may have set?


A7N8X Board Rev 2.00; BIOS Rev 1008


CPU External Freq. (MHz) [200 MHz]

CPU Frequency Multiple Setting [Auto]

x CPU Frequency Multiple 11.0x

System Performance [user Defined]

CPU Interface Optimal

Memory Frequency [Auto]

Resulting Frequency Auto

Memory Timings [user Defined]

SDRAM Active Precharge Delay 6

SDRAM RAS to CAS Delay 3

SDRAM RAS Precharge Delay 3

SDRAM CAS Latency 2.5T

FSB Spread Spectrum [Disabled]

AGP Spread Spectrum [Disabled]

CPU Vcore Setting [Menu]

CPU Vcore [1.650V]

Graphics Aperture Size [256MB]

AGP Frequency [Auto]

System BIOS Cacheable [Disabled]

Video RAM Cacheable [Disabled]

DDR Reference Voltage [2.7V]

AGP VDDQ Voltage [1.5V]

AGP 8X Support [Enabled]

AGP Fast Write Capability [Disabled]

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Have you tested each stick individually with Memtest since you aren't OC'ing the CPU?


No. Without making any changes to the BIOS, I put the original 512M back in the machine and let memtest work on it overnight. Thirty-seven passes; no errors. Then, I put the 1G sticks of memory in there and rebooted. I'll find out when I get home from work tonight.

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I have no problem replacing your modules if you want to try that.


I came home today to a black screen that should've had a running image of memtest on it so I'll take you up on your offer.


How do I find the part # and the lotcode #?


Do I just use the reply # from your response to this thread as the RMA #?



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  • 3 weeks later...
I have no problem replacing your modules if you want to try that.


Thanks, RAM GUY. I received the replacement modules in the mail a couple of days ago but didn't have the time to install them until this morning. I was able to run 15 passes of memtest86+ (with no errors) while at work and then Prime95 without errors (I stopped after an hour or so).


Anyway, thought you'd like to know.



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