regeter Posted October 20, 2009 Share Posted October 20, 2009 With LanParty X58-T3eH8. Initially I had run this Ram at the max voltage of 1.65, and overclocked the CPU slightly (150 BCLK) whilst leaving the RAM under clocked with very lenient timings (10-10-10-24 2T). This did not proof 100% and I've had a BSOD, every other day. I had run this config for two months, after every BSOD I would adjust CPU/VTT voltage and make sure I don't violate any i7 rules (DRAM Freq x 2 < Uncore Freq < QPI Freq). So I decided to set everything to stock. I used the "Load Optimized Settings" from the Bios Menu. I noticed that the Memory Voltage was reset to 1.56. Because I wanted everything at stock, that is what I left it on. This config caused immediate BSOD. Approximate takes about 5mins to cause it. My concern is now that I have seen how unstable the RAM is at just 0.09V less and still strongly under clocked with lenient timings, that this is the cause of my sporadic BSOD. Apparently you are not permitted to run the DRAM at more then 1.65V with i7 so I am unsure that my PC can ever be 100% stable with this RAM kit. Link to comment Share on other sites More sharing options...
regeter Posted October 20, 2009 Author Share Posted October 20, 2009 I am thinking of leaving my CPU at stock speed, and run the RAM at specification. (reverse of what I had been doing of first trying to get the CPU to settle in at higher clock) Meaning: 7-8-7-20 values at 1866MHz at 1.65V Vdimm If that causes immediate BSOD, could I get an RMA? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 21, 2009 Corsair Employees Share Posted October 21, 2009 Please make sure than you have the latest BIOS version and then load setup defaults and set XMP to Profile one and then set the QPI/CPU VTT Voltage to 1.40 Volts and test the system with http://www.memtest.org to be sure. Link to comment Share on other sites More sharing options...
regeter Posted October 23, 2009 Author Share Posted October 23, 2009 My motherboard doesn't have XMP. (X58-T3eH8) When I had a slight overclock I was in fact running at 1.45 VTT. (Max safe value for D0 per DFI) I will run this RAM at rated speed this weekend and also test with memtest. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 23, 2009 Corsair Employees Share Posted October 23, 2009 And the memory Voltage should be 1.65 Volts but please do let us know! Link to comment Share on other sites More sharing options...
regeter Posted October 24, 2009 Author Share Posted October 24, 2009 Didn't look good. I have done these tests and all resulted in BSOD (1A and 7E) All test at stock BLCK of 133. VTT at 1.4v DRAM at 1.65 QPI x 24 Uncore x30 DRAM x14 (1862mhz) 10-10-10 timings (BSOD during Windows boot - This could be caused because Uncore is faster then QPI) QPI x 24 Uncore x24 DRAM x12 (1596mhz) 7-8-7 timings and 10-10-10 (Both BSOD fast) QPI x 22 Uncore x20 DRAM x10 (1330mhz) 7-8-7 timings (BSOD). I have now removed one of the RAM modules (and it seems to be better), but I will enter a RMA. I heard I can only RMA the set, which is OK since I can borrow a DDR3 Module. My lessons learned is to get more "regular" RAM and to stress test RAM before moving on to the CPU. I cannot believe this RAM cannot work at 1.56V/1033mhz/10-10-10 and requires a Voltage increase right off the bat. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 26, 2009 Corsair Employees Share Posted October 26, 2009 Can you test them on another MB to be sure, maybe a friend can help you? Link to comment Share on other sites More sharing options...
regeter Posted February 16, 2010 Author Share Posted February 16, 2010 I have tested and identified the guilty. Been running for months without BSOD with just the two. RMA created. Link to comment Share on other sites More sharing options...
regeter Posted February 17, 2010 Author Share Posted February 17, 2010 Should I receive an email with details of RMA number and address? I filled in the form http://www.corsair.com/warranty/rma_form.aspx yesterday but so far I have received nothing via email. should I simply resubmit? Link to comment Share on other sites More sharing options...
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