Diverking Posted March 18, 2011 Share Posted March 18, 2011 Hai, I'm rather new in oc. I build my own PC with I-950 and 3x4 CMX12GX3M3A2000C9. The mem shows up as 1066. If i use XMP the bios falls back in default settings. What are the correct Bios setings for 1366 or 1600? Can somebody help me I changes DRAM voltage to 1,65 but no results. What am I doing wrong Link to comment Share on other sites More sharing options...
peanutz94 Posted March 19, 2011 Share Posted March 19, 2011 make sure when you set XMP in the bios you SAVE AND EXIT. That way your changes take a hold. If you don't you will go back to defaults. XMP should also take care of setting voltages and timings. But check your timings just to be sure. Link to comment Share on other sites More sharing options...
Diverking Posted March 19, 2011 Author Share Posted March 19, 2011 Tnx Peanutz94 My XMP Profile for the Corsair CMX12GX3M3A2000C9 is 2006 Mhz 9-10-9-2n-1,65v-125v After reboot the system comes up with "Overclock failed" Press F1 to enter bios or F2 to reset to default. Then i'm back to 1066 Does the Intel i-950 have something to do with it it? Greetz Diverking Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted March 24, 2011 Corsair Employee Share Posted March 24, 2011 YES, the I950 CPU's may not over clock to 2000 MHz for the memory with out some tweaking. I would got to BIOS setup and load setup defaults and then enable XMP and set the CPU/QPI Voltage to 1.35 Volts and set the memory frequency at DDR1600 and see if it will post and run http://www.memtest.org. Link to comment Share on other sites More sharing options...
nicoljb Posted March 24, 2011 Share Posted March 24, 2011 I have this exact same combo except corasir 12 meg (6*2) 1600c9 and have made way too many attempts to get stable and correct ram reading out of the p6x58d-e and it will not do so. I have tried about every "fix" and variations of fixes and nothing has worked consistently. The most stable config is running ram at 1066 with stock ram settings (dram+qpi). It will post 12 meg about 80% of the time. the x58 seems the likely culprit but why do other boards with same ram and x58 work correctly ? Corsair says this ram is compatible with this board but I would love for them to post the setup they tested. Asus rarely updates their qvl but i figured Corasir had it right. btw, i have tried two other ddr 3's on this board, both on qvl (4 and 6 meg configs) and NONE of them would post consistently at their rated speed with this board. good luck with this board and ddr3. Link to comment Share on other sites More sharing options...
nicoljb Posted March 24, 2011 Share Posted March 24, 2011 ps: memtest86 showed ram was fine at 1600 on another board that starts with a "G" :biggrin:. Link to comment Share on other sites More sharing options...
Yellowbeard Posted March 24, 2011 Share Posted March 24, 2011 Hai, I'm rather new in oc. I build my own PC with I-950 and 3x4 CMX12GX3M3A2000C9. The mem shows up as 1066. If i use XMP the bios falls back in default settings. What are the correct Bios setings for 1366 or 1600? Can somebody help me I changes DRAM voltage to 1,65 but no results. What am I doing wrong Is your BIOS showing 1 XMP profile or 2 XMP profiles? Link to comment Share on other sites More sharing options...
Diverking Posted March 25, 2011 Author Share Posted March 25, 2011 Is your BIOS showing 1 XMP profile or 2 XMP profiles? I have a triple set of CMX12GX3M3A2000C9 (3x4Gb) Only on XMP profile is showing (see my previous post) Diverking Link to comment Share on other sites More sharing options...
Diverking Posted March 25, 2011 Author Share Posted March 25, 2011 All, I tried a lot of settings. To much to mention. All of them ended in "overclock failed" press F1..., F2 Is this mobo a hard one to overclock? A could buy som cheaper mem instead of the CMX12GX3M3A2000C9. Diverking Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted March 25, 2011 Corsair Employee Share Posted March 25, 2011 It is not the MB it is the CPU that is holding you back, what if you set the settings I suggested but set the memory frequency to DDR1600 will post and pass http://www.memtest.org? YES, the I950 CPU's may not over clock to 2000 MHz for the memory with out some tweaking. I would got to BIOS setup and load setup defaults and then enable XMP and set the CPU/QPI Voltage to 1.35 Volts and set the memory frequency at DDR1600 and see if it will post and run http://www.memtest.org. Link to comment Share on other sites More sharing options...
Diverking Posted April 13, 2011 Author Share Posted April 13, 2011 Sorry of my late reaction (family matters) I've tried to enable XMP -Only profile#1 (2000Mhz) Mem freq 1720 (1600 is not in the list) CPU/QPI is showing 1.4000 set to 1.3500 DRAM bus is showing 1.6500 (left it this way) rest is auto and guess Overclock failed pres F1 Greetz Diverking "only the ones that keep on trying will succeed..." Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted April 14, 2011 Corsair Employee Share Posted April 14, 2011 Leave the QPI Voltage at 1.4 Volts and test the modules one at a time with http://www.memtest.org. Link to comment Share on other sites More sharing options...
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