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HX3X12G1600C9 setting for Asus Rampage Extreme II


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I'm doing some troubleshooting for my system and I need the settings for my Rampage Extreme II with HX3X12G1600C9 sticks and i7 950. Specifically, I need the QPI/DRAM Core Voltage and DRAM Bus Voltage Settings. There isn't much about these memory sticks in the stickies.



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I did some research and found the DRAM Voltage should be 1.6V, what should the QPI Voltage be? I read in some sites it should be 0.4V from the DRAM Voltage Bus. So should it be 1.2V or should I leave it in auto?



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  • Corsair Employees

I would recommend that you load setup defaults in the BIOS and then enable the XMP setting. This should automatically configure your memory settings. If you would prefer to set it up manually then please set the following:


Memory Voltage: 1.6v

QPI Voltage: 1.35v

Memory Frequency: 1600MHz



TRP: 9

TRAS: 24


Let us know if you have any problems!

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