therob Posted December 29, 2011 Share Posted December 29, 2011 I have the above mentioned motherboard with 1600 DDR3 OCZ gold, but I've always had issues with this configuration so I had to downlcock to 1333 to get it to work without crashing. I want to upgrade my memory and want to go with the corsair vengeance 3X4 (CMZ12GX3M3A1600C9). The gigabyte website memory compatability list is severely outdated but on the corsair website it says this memory should be compatible with the GA-EX58-UD3R-sli series. My question is, it specifically says "GA-EX58-UD3R-SLI" whereas my motherboard is GA-EX58-UD3R rev 1.6. Can I expect it to work without any issues? Link to comment Share on other sites More sharing options...
Wired Posted December 29, 2011 Share Posted December 29, 2011 That memory kit will work with any 1366 rig, so you're good to go. Just don't mix memory that wasn't tested / packaged / tested together. Link to comment Share on other sites More sharing options...
therob Posted December 29, 2011 Author Share Posted December 29, 2011 So the compatability list doesn't really mean anything? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 3, 2012 Corsair Employees Share Posted January 3, 2012 No sure what you mean by compatibility list but these models are tested on Intel X58 chipsets so they will work on any MB using that chipset. Link to comment Share on other sites More sharing options...
therob Posted January 4, 2012 Author Share Posted January 4, 2012 Alright so I got the ram and installed it. XMP did not work (pc wouldn't boot), so I went with 9-9-9-24 timings and 2t command. Put the voltage at 1.5 and qpi/vtt is at 1.36. Does everything look good? I uploaded some pics from CPU-Z if you guys can please take a look. Thanks! edit: tri-chan mode obviously Link to comment Share on other sites More sharing options...
peanutz94 Posted January 4, 2012 Share Posted January 4, 2012 Yes it looks good. As long as it is stable you should be good to go! Link to comment Share on other sites More sharing options...
therob Posted January 4, 2012 Author Share Posted January 4, 2012 So the command rate at 2T is good? Or do I need to change that to 1T? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 5, 2012 Corsair Employees Share Posted January 5, 2012 If the system is stable I would leave it alone but you can try what ever you like. Link to comment Share on other sites More sharing options...
therob Posted January 5, 2012 Author Share Posted January 5, 2012 So far so good :biggrin: Just for curiosity's sake what would the "default" command rate be? Link to comment Share on other sites More sharing options...
Yellowbeard Posted January 5, 2012 Share Posted January 5, 2012 Look at your SPD tab for the 1600 profiles and you will see the 2Tcommand rate. Also, what CPU do you have? 1.36v for VTT sounds high to me for only 3 modules at 1600. Link to comment Share on other sites More sharing options...
therob Posted January 5, 2012 Author Share Posted January 5, 2012 i7 920 D0 CPU Link to comment Share on other sites More sharing options...
Yellowbeard Posted January 5, 2012 Share Posted January 5, 2012 Most 920s I have seen were able to do 1600 with the QPI VTT at stock - 1.25v range at most. Yours could be an exception. Link to comment Share on other sites More sharing options...
therob Posted January 5, 2012 Author Share Posted January 5, 2012 The reason I had it higher was because of the constant lockups I was getting with my previous ram. Didn't test this new ram with a lower qpi/vtt voltage. So you're saying 1.25v should be fine? And everything else looks peachy? Link to comment Share on other sites More sharing options...
Yellowbeard Posted January 5, 2012 Share Posted January 5, 2012 Most 920s I have seen were able to do 1600 with the QPI VTT at stock - 1.25v range at most. Yours could be an exception. The rest looks fine. Link to comment Share on other sites More sharing options...
therob Posted January 5, 2012 Author Share Posted January 5, 2012 Thanks, I will change it and report back if it gives me any issues. I want to thank everyone else who responded for their help also. :biggrin: edit: put qpi to auto and it's at 1.15v stable so far. Link to comment Share on other sites More sharing options...
peanutz94 Posted January 5, 2012 Share Posted January 5, 2012 Most 920s I have seen were able to do 1600 with the QPI VTT at stock - 1.25v range at most. Yours could be an exception. Hey Yellow beard, my 920 has never run on stock QPI. XMP would set QPI to 1.35v with my old 6 gig kit. The 24 gig kit i have now took 1.4v. *shrugs* Link to comment Share on other sites More sharing options...
Yellowbeard Posted January 5, 2012 Share Posted January 5, 2012 Hey Yellow beard, my 920 has never run on stock QPI. XMP would set QPI to 1.35v with my old 6 gig kit. The 24 gig kit i have now took 1.4v. *shrugs* Did you ever actually test 3 modules at lower voltages? Also, is your CPU a "C" stepping? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 5, 2012 Corsair Employees Share Posted January 5, 2012 There are so many CPU's it is easy to confuse them but this may help with Core I7 900 series CPU's and what Voltage is supported for the memory controller; (C0) stepping CPU's can run with the QPI up to about 1.7 Volts. (D0) stepping CPU's can run with the QPI up to about 1.45 Volts (B0) stepping CPU's can run with the QPI up to about 1.25 Volts Link to comment Share on other sites More sharing options...
peanutz94 Posted January 6, 2012 Share Posted January 6, 2012 Did you ever actually test 3 modules at lower voltages? Yes actually,When i first put this rig together. I was getting errors and random crashes and that exact situation is what led me here. Even the 6 gig kit took 1.35v to get them stable. Also, is your CPU a "C" stepping? No it's a DO. There are so many CPU's it is easy to confuse them but this may help with Core I7 900 series CPU's and what Voltage is supported for the memory controller; (C0) stepping CPU's can run with the QPI up to about 1.7 Volts. (D0) stepping CPU's can run with the QPI up to about 1.45 Volts (B0) stepping CPU's can run with the QPI up to about 1.25 Volts Hmm, i didn't kjnow there even was a B0. I was aware of the voltage difference that may be needed between the C0 and D0, but not the B0. Do you know what the difference is between he C and D chips that would make the C0 need up to 1.7v QPI over the 1.45v for the D0? Seems like an awful large swing in the difference between the two. And why so low for the B0? I would like to know just for curiosity sakes. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 7, 2012 Corsair Employees Share Posted January 7, 2012 Do you know what the difference is between he C and D chips that would make the C0 need up to 1.7V QPI over the 1.45v for the D0? Seems like an awful large swing in the difference between the two. And why so low for the B0? I would like to know just for curiosity sakes. It is not that it needed that much Voltage it was that you could with out damaging the CPU. And on some of the extreme O.C. Modules a few years ago that was what you had to do to get 2000+ MHz. And as they have shrunk the CPU DIE the default voltage has been lowered and in some cases can cause damage to the CPU if over volt'ed. Or it may be come unstable if too much voltage is used. As you know the Max memory Voltage is 1.65 Volts for these CPU so the only voltage you can play with is the memory Controller Voltage. These are the Max Voltages you can use for the specific Cores but I would not suggest using that much Voltage if you don't need to. Link to comment Share on other sites More sharing options...
peanutz94 Posted January 7, 2012 Share Posted January 7, 2012 Perfect! Thank you for that explanation. I learned something new today! :) Link to comment Share on other sites More sharing options...
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