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No matter what settings I use, I can't seem to clock the RAM over 1726 MHz. I emailed support, and they gave me the following BIOS settings:
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First, for DDR3-2000, you need a CPU Host Frequency of 250.
250 x 8 (max memory multiplier) = DDR3-2000
CPU-NB Frequency needs to be 12X, 3000MHz
Set DRAM Frequency to x8.00, or DDR3-2000
Set DRAM Timings tCL - tRCD - tRP - tRAS (as stated on your memory) - which would be (9-11-10-28)
Set DRAM Voltage (as stated on your memory) - which is 1.65V
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I did all of the above, except, even when raising the CPU-NB to the highest level (1.5V when the default is 1.0V), I cannot get the CPU-NB frequency to be stable at 3000MHz (~2800MHz is my limit). Are there other values I should be tweaking?
As a note, the RAM is limited to 1726MHz no matter if the CPU-NB frequency is at 2000MHz, if the FSB>300MHz, or if my CPU is clocked from 3.4GHz(stock) to 4.0GHz. Both sticks (individually tested) show the same results, so I don't think that there is a defect causing the problem. My motherboard is rated for up to 2000MHz (OC) RAM and has presets for up to 2400MHz, so I don't believe that that is the issue either. Perhaps someone could give me some settings to try out?
EDIT: I took a second look at the specs for my motherboard and noticed that it recommended an AM3+ cpu for clocking RAM above 1866MHz. Since my CPU is the AMD Phenom II 965 (3.4 x4), is there a cap to my RAM speed? In this case, should I still expect to clock the RAM up to 1866 at the least?
-------------------
First, for DDR3-2000, you need a CPU Host Frequency of 250.
250 x 8 (max memory multiplier) = DDR3-2000
CPU-NB Frequency needs to be 12X, 3000MHz
Set DRAM Frequency to x8.00, or DDR3-2000
Set DRAM Timings tCL - tRCD - tRP - tRAS (as stated on your memory) - which would be (9-11-10-28)
Set DRAM Voltage (as stated on your memory) - which is 1.65V
-------------------
I did all of the above, except, even when raising the CPU-NB to the highest level (1.5V when the default is 1.0V), I cannot get the CPU-NB frequency to be stable at 3000MHz (~2800MHz is my limit). Are there other values I should be tweaking?
As a note, the RAM is limited to 1726MHz no matter if the CPU-NB frequency is at 2000MHz, if the FSB>300MHz, or if my CPU is clocked from 3.4GHz(stock) to 4.0GHz. Both sticks (individually tested) show the same results, so I don't think that there is a defect causing the problem. My motherboard is rated for up to 2000MHz (OC) RAM and has presets for up to 2400MHz, so I don't believe that that is the issue either. Perhaps someone could give me some settings to try out?
EDIT: I took a second look at the specs for my motherboard and noticed that it recommended an AM3+ cpu for clocking RAM above 1866MHz. Since my CPU is the AMD Phenom II 965 (3.4 x4), is there a cap to my RAM speed? In this case, should I still expect to clock the RAM up to 1866 at the least?
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