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Asus Rampage 2 Extreme w/ HX3X12G1600C9 only sees 8GB now?


apaiz

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R2E board running BIOS 1504 using Corsair HX3X12G1600C9. I went to change some values in BIOS and all of the sudden the BIOS only sees 8GB of memory out of the 12. All of my bios settings are set to default settings for the board. There is a post of mine in the enthusiast section about changing my values, but only ran those for a couple of hours and set everything back to defaults.

 

I have pulled all the ram modules out and reseated the fan w/cpu. no avail it only shows up as 8gb. Are there any task you would like me to perform now so I can move forward? Any help would be greatly appreciated.

 

Thanks

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Please check that you have the latest BIOS version and then load setup defaults and enable XMP Profile one and see if all of the memory shows up in http://www.memtest.org. If not please test the modules one at a time with http://www.memtest.org to be sure one is not failing.

 

I do have the latest BIOS installed which is 1504 and did enable XMP profile on the ram which set it to 1600Mhz. I received the same results only 8gb showing up in BIOS and Windows. How long does it take for each module to be tested using memtest?

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Its hard to say but should not take to long about 10-20 Min per module to get through 2-3 passes But if they all pass then it may be a problem with the CPU or one of the slots you may want to try and re-seat the CPU as well.
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