Chickenfeed Posted September 30, 2009 Share Posted September 30, 2009 I have a question regarding the tRas timing on these modules. The XMP profile reports 7-7-7-20 timings yet for some reason windows is reporting the tRas running at 23 ( I have 7-7-7-20 manually keyed into the BIOS ) I've played around with the Performance profile options that gigabyte have but they don't seem to effect any timings of the ram itself (just the chipset) I am running a single 3x2 kit. I am currently running at 1.66 vdimm, 1.355 QPI vtt and 1.3 vcore at 19x200 with the QPI at 3.6GHz (36x multi / 7.2GTs). Changing any of the clock speeds doesn't have any effect on anything ( reports 23 tRas at any settings ) The ram itself is working perfectly fine performance and stability wise I just wanted clarification on the tRas timing and if this is normal. Here is a image of the info reported in windows. http://img30.imageshack.us/img30/5118/ram77723.th.jpg Let me know if you require any more information ( BIOS settings ect ) Appreciate your feedback. Link to comment Share on other sites More sharing options...
Chickenfeed Posted October 1, 2009 Author Share Posted October 1, 2009 To follow up, this issue appears to be an issue with the BIOS. It more than likely will be something that will be fixed in future BIOS revisions. For the benefit of others I did find this kit won't run CR1 at auto settings on the UD5 ( the XMP profile sets the CR setting to 2 for memory channels b and c ) If you manually key in the CR setting for b and c, it will run correctly at 1T shaving off some latency. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted October 2, 2009 Corsair Employee Share Posted October 2, 2009 You are looking in the SPD tab and that is correct for that part, you need to check in the Memory Tab to see what the system is actually running at. Link to comment Share on other sites More sharing options...
Chickenfeed Posted October 6, 2009 Author Share Posted October 6, 2009 That is why I included the everest info as well. For reference sake, CPUZ reports 7-7-7-23. I contacted Gigabyte about this and they are going to look into it but does appear to be an issue with the BIOS and not the dimms themselves so all is well. I will mention however if I manually key in the timings ( which the XMP profile reports at 7-7-7-20 as it should ) the machine won't boot. If I leave them be, it boots fine. Again I'm still thinking it to be BIOS related. I spoke with one of your technicians last week and that is the conclusion we came to. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted October 8, 2009 Corsair Employee Share Posted October 8, 2009 If you set the timings manually you must also set the memory Voltage and CPU VTT Voltage as well or for sure it will not post or run properly. Link to comment Share on other sites More sharing options...
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