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P5N32-E & XM2S-6400


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If you are seeing Memtest failures with one or both units of a TWINX pair, please post system information here: Motherboard, BIOS rev, module rev (i.e. "v1.2") and processor.


1. Make and Model of MB.

Asus P5N32-E SLI

2. Bios Version of your MB if you know it.

Tried 0602. Currently on 0702. Going to try 0902 this week

3. Our Modules part and Revision (i.e. "v1.2")

TWIN2X2048-6400C4. Don't know the revision off hand. Will check after MemTest is done

4. CPU Speed and FSB.

Intel Core 2 Duo E6600 running 2.4Ghz - 800Mhz

5. Make and Model of Video card

eVGA 8800GTX 768MB

6. Make and Model of your PSU.

OCZ GamerXStream 600W


BIOS manually set to 4-4-4-12-2T/2.1v because the MB auto detected to 5-5-5-5-1T (0602 BIOS). I purchased 4 modules and had to send two back because the system would not boot with either of them. With the two remaining modules the system is fairly unstable. BSoD, freezing, random reboots, etc... Could not enable SLI Memory option even at 0% because the system was extremely unstable.


I'm going to run MemTest86 for 24 hours on the current two modules to see how it turns out. Hopefully the two replacement modules that come next week will run ok.

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Please re-flash to the latest bios using the afudos utility from DOS and then load setup defaults and then set the Dim Voltage to 1.9-2.0 volts (+.2 Volts W/Giga-Byte) 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. In addition, with this MB you have to disable legacy USB in the bios when running any memory test.
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