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Convinced that my memory module is bad...


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Corsair Value Select PC32000 512MB DDR 400


A7N8X-E Deluxe


Here are my first few symptoms.


At first in a unrelated problem I had to reinstall Windows.

Windows setup had problems copying its setup files.

I immediately suspected faulty memory.

I removed one of the modules for the heck of it. Windows installs fine.

I reinserted the suspect module, and began installing games and applications.

The system reboots spontaneously during installation (Happened 4 times in a row).

Tried update patches on a game (Starcraft) ran into some errors.

I downloaded the Memtest86+ program and ran it, there were several errors, about 70,000 in 10 minutes.

I removed the bad module, Ran Memtest86+, no errors.

I removed the good module and inserted the bad. Memtest 86+ received errors.


I use default BIOs settings, and my system is not overclocked.


So does this sound like bad memory or what? Any other theories?, though I'm convinced it's faulty, and in need of a repalcement. Thank you very much.

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Please use the ASUS Bios 1.013 or newer and then, please try these settings:

With the A7N8X-E please set the FSB jumper to pins 2-3 with the modules in slots 2-3 and then reset or clear the bios and load setup defaults and set the Dim Voltage to 2.8 Volts and set the timings manually. Then please test the system with http://www.memtest.org.

CPU Freq: 200 MHz

Memory Frequency: 100%

Dim Voltage to 2.8 Volts

Resulting Frequency: 200 MHz

Memory timings: By SPD

Would results in these settings

SDRAM CAS Latency: 2.5T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 3T

SDRAM Active to Precharge Delay (tRAS): 8T


If you get errors please test the modules one at a time to make sure one is not failing, I have had 4 of these exact MB's and this is what had to be done to solve problems with aggressive memory, no matters who's I tested. In addition, a few other's had some success disabling Spread Spectrum in the bios as well. I would take a look at http://www.asusforums.org as well in the AMD section.

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Thanks RAMGUY,


I've changed the CPU FSB jumper settings, and changed the BIOS setting according to the steps you provided.


I tested one module at a time using Memtest, still the suspected module comes up bad in the test. The other module runs just fine.


I also visted the forum you recommended, but could not find any other solutions to the problem. Disabling Spread Spectrum did not make a difference.

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