Peter111 Posted October 27, 2009 Share Posted October 27, 2009 Hi, I recently bought a new computer (EX58 Exteme, I7 975 and 12 Gig 2x Corsair CMG6GX3M3A2000C8). The Shop Tech set the System Memory Multipyer to 12 (from memory) and the Memory Frequncy is just over 1600 mhz. I wanted to get the full 2000 mhz. So I tried increasing the SMM above 12, though upon restart it would return to Bios. After checking the forum here I decided ti change the QPI/Vtt voltage to 1.35v and progress to 5.0v though upon saving at 1.35v the system just kept cycling on and off, never returning to bios, and I had to manually reset cmos button to get back to bios. So I was wondering if someone knew of the correct settings for my setup they could help. Thnx Link to comment Share on other sites More sharing options...
Yellowbeard Posted October 27, 2009 Share Posted October 27, 2009 12GB at 2000 is VERY hard to do and is outside of our tested specifications. However, you may have some luck if you use a single kit first, set the XMP profile, then add the 2nd kit. You may have to tweak the voltages a bit more above the XMP settings. Link to comment Share on other sites More sharing options...
Peter111 Posted October 27, 2009 Author Share Posted October 27, 2009 Thanks for yor reply Yellowbeard. I did try the XMP feature with 1 of the above results and Windows 7 64 had to redo my PCI settings (from memory). The shop Tech said that happenned because the XMP feature just alters (I think it was the) Base Clock Control to achieve 2000 mhz also affecting the PCI. I don`t think I`ll go pulling the memory out (I don`t feel that confident). 1600 mhz will do me fine then. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 27, 2009 Corsair Employees Share Posted October 27, 2009 NP Please let us know if you have any more questions! Link to comment Share on other sites More sharing options...
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