First, be sure your memory can run stable at those settings (I don't doubt, but just to be sure). I would raise memory voltage to 1.65V no matter.Hello ,this is my settings
But my OC is not stable,what I change in preferences?Code:Target CPU Frequency 4410MHz Target DRAM Frequency 1681MHz LN2 Mode [Disabled]*** QPI Loadline Calibration [Enabled]*** Sync Mode [Enabled] AI Overclock Tuner [Manual] OC From CPU level Up [Auto] 2D Performance Booster [Disabled] CPU Ratio Setting [21] CPU Turbo Power Limit [Disabled] >CPU Configuration---------------------------- CPU Ratio Setting [21] C1E Support [Disabled] Hardware Prefetcher [Enabled] Adjacent Cache Line Prefetcher [Enabled] MPS and ACPI MADT ordering [Modern ordering] Intel(R) Virtualization Tech [Enabled] CPU TM Function [Disabled] Execute Disable Bit [Disabled] Intel(R) HT Technology [Disabled] Active Processor Cores [All] A20M [Disabled] Intel(R) SpeedStep(TM) Tech [Disabled] Intel(R) C-STATE Tech Disabled] C State package limit setting [Auto] C1 Auto Demotion [Enabled] C3 Auto Demotion [Enabled] ---------------------------------------------- BCLK Frequency [210] PCIE Frequency [100] DRAM Frequency [1681] UCLK Frequency [3362] QPI Link Data Rate [Auto] Memory Configuration Protect [Disabled] >DRAM Timing Control-------------------------- CAS# Latency [Auto]7 RAS# to CAS# Delay [Auto]7 RAS# PRE Time [Auto]7 RAS# ACT Time [Auto]20 RAS# to RAS# Delay [Auto]4 REF Cycle Time [Auto]88 WRITE Recovery Time [Auto]10 READ to PRE Time [Auto]7 FOUR ACT WIN Time [Auto]20 Back-To-BackCAS# Delay [Auto]0 Timing Mode [Auto]1N Round Trip Latency on CHA [Auto]62 Round Trip Latency on CHB [Auto]64 Round Trip Latency on CHC [Auto]65 WRITE To READ Delay(DD) [Auto]5 WRITE To READ Delay(DR) [Auto]5 WRITE To READ Delay(SR) [Auto]16 READ To WRITE Delay(DD) [Auto]10 READ To WRITE Delay(DR) [Auto]10 READ To WRITE Delay(SR) [Auto]11 READ To READ Delay(DD) [Auto]7 READ To READ Delay(DR) [Auto]6 READ To READ Delay(SR) [Auto]4 WRITE To WRITE Delay(DD) [Auto]7 WRITE To WRITE Delay(DR) [Auto]7 WRITE To WRITE Delay(SR) [Auto]4 ---------------------------------------------- CPU Differential Amplitude [Auto] CPU Clock Skew [Auto] IOH Clock Skew [Auto] ------------ Extreme Engine Digi+ ------------ Digi+ PWR Mode [T=Balance] PWR Volt. Control [Auto] Load-Line Calibration [Full Calibration] CPU Voltege OCP [Enabled] CPU PWM Frequency [Auto] Extreme OV [Disabled] Extreme OC [Auto] CPU Voltage [1.38100] CPU PLL Voltage [1.81500] QPI/DRAM Core Voltage [1.31250] DRAM Bus Voltage [1.62925] >DRAM REF Voltages---------------------------- DRAM DATA REF Voltage on CHA [+0mV] DRAM CTRL REF Voltage on CHA [+0mV] DRAM DATA REF Voltage on CHB [+0mV] DRAM CTRL REF Voltage on CHB [+0mV] DRAM DATA REF Voltage on CHC [+0mV] DRAM CTRL REF Voltage on CHC [+0mV] ---------------------------------------------- IOH Voltage Auto[1.16950] IOH PCIE Voltage Auto[1.52375] ICH Voltage Auto[1.13950] ICH PCIE Voltage Auto[1.52375] ---------- Spread Spectrum Control ----------- CPU Spread Spectrum [Disabled] DRAM Spread Spectrum [Disabled] ***on-board jumper dependant
Thanks
MB: Asus Rampage 3 E bios 0095
CPU Core i7 920 D0
Corsair Dominator GT 3x2 2000mhz cl8
Second, raise IOH voltage, it could be too low for 210MHz BCLK.
Then, I would play with CPU and VTT (QPI/DRAM) if still unstable.
Give it a try and report back.![]()




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