digits Posted April 8, 2013 Share Posted April 8, 2013 I recently purchased a 16GB Kit of Corsair Dominator 1866, and I had been noticing some system stability issues. I quickly began running Memtest 86 while running at 1866, which began throwing errors. So I put the memory at 1333MHz, and it ran fine, then proceeded to do the same at 1600 and it also ran fine there. Then I proceeded to turn the XMP profile on again and booted into Memtest 86 at 1866 and quickly got errors again, any suggestions on what changes I should make to get them working at 1866? Kinda silly for me to buy 1866 memory and run it at 1600. :) EDIT: I forgot to mention what voltages I'm using and BIOS revision. I am running at all stock voltages, 1.50v RAM 1.05v VTT, CPU is at stock voltage. Running BIOS revision 17f (BETA BIOS). EDIT2: Raised the voltage from 1.50v to 1.60v and it's running fine now? 1.55v still gave errors. Does this sound reasonable? Thanks Rob Link to comment Share on other sites More sharing options...
peanutz94 Posted April 9, 2013 Share Posted April 9, 2013 EDIT2: Raised the voltage from 1.50v to 1.60v and it's running fine now? 1.55v still gave errors. Does this sound reasonable? Yes, and that was my next suggestion. If it's stable at 1.6v then leave it there. It's not uncommon to have to add extra voltage for the overclock Link to comment Share on other sites More sharing options...
digits Posted April 10, 2013 Author Share Posted April 10, 2013 I spoke too soon. I raised the IMC to 0.96 volts + DDR Voltage to 1.6v and I'm still getting errors in prime 95 blend. Any other suggestions? Link to comment Share on other sites More sharing options...
digits Posted April 10, 2013 Author Share Posted April 10, 2013 I downgraded the BIOS from B17f to F16 and so far I've ran two passes on Memtest86 w/ 1.515v without any crashes. I believe it to be a BIOS issues since I didn't even have to raise the IMC voltage at all. How many passes of Memtest are recommended before it's considered stable? I usually run 24 hours of Prime 95, but I've never ran Memtest86 for more than a few passes. EDIT: 2x Passes of Memtest86, which I couldn't get through 1 1/2 before. Now I'm onto nearly an hour of Prime95. I guess it was the beta BIOS causing me all of the troubles. Still running 1.515v (1.50v reported voltage) without any added IMC voltage. Possible success! Wish me luck! lol Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 10, 2013 Corsair Employees Share Posted April 10, 2013 XMP 1.3 does not require any voltage changes beyond that of DRAM. You should not need to adjust for anything else to be stable. As for the number of passes in Memtest we recommend 3. Link to comment Share on other sites More sharing options...
digits Posted April 11, 2013 Author Share Posted April 11, 2013 Thanks, I will start running Memtest86. I had to raise the voltage to 1.6v on the DRAM, seems to be okay so far. We'll see. Link to comment Share on other sites More sharing options...
digits Posted April 11, 2013 Author Share Posted April 11, 2013 I successfully completed 3 passes of Memtest86 @ 1.6v, is this bad for the RAM though? Link to comment Share on other sites More sharing options...
peanutz94 Posted April 11, 2013 Share Posted April 11, 2013 No, the memory is good to about 2.0v before you would need to worry abut damaging the memory . If all is stable you should be good to go! Link to comment Share on other sites More sharing options...
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