Quote Originally Posted by Soto View Post
Hi Everybody. I'm trying to reach the Stock speed of my memory but I'm having problems. I set the NB Voltage to 1.49V, FSB at 430mhz and I was able to run Prime95 Blend Test without problems for 30 minutes.

Then, I tried to run at 440mhz FSB with the same voltage but my PC freezes after 1 minute of test. I've Increased step by step the NB Voltage from 1.49 to 1.63 and Prime95 still freezes.

I'm not using watercooling in the NB but the temperature remains under 60.

Any help is really appreciated. This is the configuration I'm trying to run.

Ai Overclock Tuner: [Manual]
OC From Memory Level Up: [Auto]
CPU Ratio Setting: [06.0]
FSB Frequency: [440]
FSB Strap to North Bridge: [400MHz]
PCIE Frequency: [100]
DRAM Frequency: [DDR3-1760MHz]
DRAM Command Rate: [2T]
DRAM Timing Control: [Manual]
.........Primary Info: [8-8-8-24-4-60-10-5]
.........Secondary Info: [9-5-6-4-7-4-7]
DRAM Static Read Control: [Auto]
DRAM Dynamic Write Control: [Auto]
Ai Clock Twister: [Auto]
Ai Clock Skew for Channel A: [Auto]
Ai Clock Skew for Channel B: [Auto]
Ai Transaction Booster: [Enabled]
..........Boost Level: [1]
CPU Voltage: [1.25000V]
CPU PLL Voltage: [Auto]
North Bridge Voltage: [1.63V]
DRAM Voltage: [1.96V]
FSB Termination Voltage: [Auto]
South Bridge Voltage: [Auto]
Loadline Calibration: [Enabled]
CPU GTL Reference: [Auto]
North Bridge GTL Reference: [Auto]
DDR3 Channel A REF Voltage: [Auto]
DDR3 Channel B REF Voltage: [Auto]
DDR3 Controller REF Voltage: [Auto]
SB 1.5V Voltage: [Auto]
CPU Spread Spectrum: [Auto]
PCIE Spread Spectrum: [Auto]


*Advanced CPU Settings

C1E Support: [Disabled]
CPU TM Function: [Enabled]
Vanderpool Technology: [Enabled]
Execute Disable Bit: [Enabled]
Max CPUID Value Limit: [Disabled]


Core 2 Quad Extreme QX9650 Underclocked
ASUS Maximus Extreme
Corsair Dominator 2 x 1GB DDR3 PC14400
Thermaltake Toughpower 1000W PSU
Zalman CNPS 9700 CPU Heatsink and Fan
I have the same problem. Seems like there is issues with Maximus Extreme + Dominator 1800MHz...
I've reached stability at FSB 435, I am testing 440 right now, so far 1h 17 min stable.

Right now my settings are something like this:
Ai Overclock Tuner: [Manual]
OC From Memory Level Up: [Auto]
CPU Ratio Setting: [06.0]
FSB Frequency: [435]
FSB Strap to North Bridge: [333MHz]
PCIE Frequency: [100]
DRAM Frequency: [DDR3-1740MHz]
DRAM Command Rate: [2T]
DRAM Timing Control: [Manual]
.........Primary Info: [7-7-7-20-4-60-10-5]
.........Secondary Info: [9-5-6-4-7-4-7]
DRAM Static Read Control: [Disabled]
DRAM Dynamic Write Control: [Disabled]
Ai Clock Twister: [Strong]
Ai Clock Skew for Channel A: [Auto]
Ai Clock Skew for Channel B: [Auto]
Ai Transaction Booster: [Enabled]
..........Boost Level: [2]
CPU Voltage: [1.45]
CPU PLL Voltage: [Don't remember, checking later]
North Bridge Voltage: [1.58V]
DRAM Voltage: [2.06V]
FSB Termination Voltage: [1.49]
South Bridge Voltage: [1.07]
Loadline Calibration: [Enabled]
CPU GTL Reference: [0.67x I think]
North Bridge GTL Reference: [0.63x I think]
DDR3 Channel A REF Voltage: [Auto]
DDR3 Channel B REF Voltage: [Auto]
DDR3 Controller REF Voltage: [Auto]
SB 1.5V Voltage: [1.55]
CPU Spread Spectrum: [Disabled]
PCIE Spread Spectrum: [Disabled]


*Advanced CPU Settings

C1E Support: [Disabled]
CPU TM Function: [Disabled]
Vanderpool Technology: [Disabled]
Execute Disable Bit: [Disabled]
Max CPUID Value Limit: [Disabled]

My volts are the ones reported by probe II, don't remember the bios settings for the volts right now.

Has anyone been able to get Dominator + Maximus stable 1800MHz?