tpho Posted March 18, 2009 Share Posted March 18, 2009 Hi, I am having problems getting my motherboard to boot my Corsair Dominator DDR2 ram to run at 1066MHz instead the system seems only boot at 800MHz. When I manually set the Bios timings to 533MHz the Bios will not post. The ram I am trying to run is two sticks of Corsair Dominator CM2X1024-8500C5D XMS-8500 1024 MB 1066 MHz 5-5-5-18 XMS8505v1.2 (I do not know the voltage) However on the main Corsair website the ram is listed as 5-5-5-15-2T with a voltage of 2.1 This is what I changed my Bios to (At this setting the Bios would not post): Memory Timming and Voltage: Memory Clock Mode [Manual] Memclock Value [533 MHz] DRAM Timing Mode [both] CAS Latency [5 CLK] TRCD [5 CLK] TRP [5 CLK] tRTP [Auto] TRAS [18 CLK] TRC [Auto] tWR [Auto] TRRD [Auto] tWTR [Auto] tRFC0 [Auto] tRFC1 [Auto] tRFC2 [Auto] tRFC3 [Auto] Memory OverVoltage [2.10000] Did I incorrectly change the timings? What should I do to get the memory to run at 1066MHz? Link to comment Share on other sites More sharing options...
edhand Posted March 18, 2009 Share Posted March 18, 2009 I had a similar problem with a different Asus board, see http://www.asktheramguy.com/v3/showthread.php?t=77415 I found the solution was that the memory had to be inserted into A2 and B2, apparently the memory will only run @800 & 1T when in A1/B1 on most Asus boards. Link to comment Share on other sites More sharing options...
DerekT Posted March 18, 2009 Share Posted March 18, 2009 Phenom and Phenom II have issues with high end memory. I advise those who purchase the AMD processors to also purchase mid-line memory if they want to ensure that the system will work correctly. Your processor is a hybrid of X2 and Phenom I technology and many of these processors will not accept 1066Mhz oon the memory. Hi, I am having problems getting my motherboard to boot my Corsair Dominator DDR2 ram to run at 1066MHz instead the system seems only boot at 800MHz. When I manually set the Bios timings to 533MHz the Bios will not post. The ram I am trying to run is two sticks of Corsair Dominator CM2X1024-8500C5D XMS-8500 1024 MB 1066 MHz 5-5-5-18 XMS8505v1.2 (I do not know the voltage) However on the main Corsair website the ram is listed as 5-5-5-15-2T with a voltage of 2.1 This is what I changed my Bios to (At this setting the Bios would not post): Memory Timming and Voltage: Memory Clock Mode [Manual] Memclock Value [533 MHz] DRAM Timing Mode [both] CAS Latency [5 CLK] TRCD [5 CLK] TRP [5 CLK] tRTP [Auto] TRAS [18 CLK] TRC [Auto] tWR [Auto] TRRD [Auto] tWTR [Auto] tRFC0 [Auto] tRFC1 [Auto] tRFC2 [Auto] tRFC3 [Auto] Memory OverVoltage [2.10000] Did I incorrectly change the timings? What should I do to get the memory to run at 1066MHz? Link to comment Share on other sites More sharing options...
tpho Posted March 24, 2009 Author Share Posted March 24, 2009 thank you both for your responses i looked at that other thread and it seems i have the same problem i dont know if its the processor limitation or not because I can run one stick of ram (1gb) at 1066 with no problem and with no problems with Memtest but as soon as i add the second stick (1gb) the bios wont post. Im thinking maybe i might need to increase the voltage to the processor but i've never done that. Could that be a cause? anythoughts? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 24, 2009 Corsair Employees Share Posted March 24, 2009 You should not need to add voltage to the processor core. A bit of voltage increase to the memory controller may be beneficial but, to date AMD users are not having good luck overall trying to run 1066. Link to comment Share on other sites More sharing options...
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