PhD Posted February 20, 2009 Share Posted February 20, 2009 Buy two weeks ago this MoBo and 2 X TWIN2X2048-6400C4. Impossible to get a perfect system with 4 MB. Sometimes it's ok with 3 MB during 2 or 3 hours then blue screen. Could you please post all the options of AI TWEAKER MENU. I think I've tried all the possibilities of the bios without finding the correct ones. If somebody have the same configuration I would be grateful if you can help me to find the correct parameters. Tks in advance. Phil Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 20, 2009 Corsair Employees Share Posted February 20, 2009 Some systems require that you lower the memory frequency when using 4 modules due to the load on the memory controller. Please try this: Clear your BIOS Reset the memory frequency, timings, and voltage manually Set your memory controller voltage to 12.5v to 1.4v range, you can try these voltage steps incrementally. If this is not stable, reduce your memory frequency to 667. Link to comment Share on other sites More sharing options...
DerekT Posted February 20, 2009 Share Posted February 20, 2009 Download memtest from--->Here and extract the ISO image. Burn the ISO image to an CD-ROM disk. Download CPU-z from Here . Insert a single stick in the first slot (Closest to the CPU) and enter your BIOS, set to these values:AI Overclock Tweaker Ai Overclock Tuner = Manual CPU Ratio Setting: 8 FSB Frequency = 333 PCIE Frequency = 100 FSB Stap to Northbridge = 333 Mhz DRAM Frequency = 667Mhz DRAM Timing Control = Manual CAS Latency = 4 DRAM RAS# to CAS# Delay = 4 DRAM RAS# Precharge = 4 DRAM RAS# Activate to Precharge = 12 RAS# to RAS# Delay = Auto Row Refresh Cycle Time (tRFC) = 60 Write Recovery Time = Auto Read to Precharge Time = Auto All other to Auto DRAM Static Read Control = Disabled DRAM Read Training = Disabled Mem. OC Charger = Auto AI Transaction Booster = Disabled Relax Level = 9 CPU Voltage = Auto CPU PLL Voltage = Auto FSB Termination Voltage = Auto DRAM Voltage = 2.1v NB Voltage = 1.30v SB Voltage = Auto PCI-E SATA Voltage = Auto Loadline Calibration = Auto CPU Spread Spectrum = Disabled PCIE Spread Spectrum = Disabled Clock Over-Charging Voltage = Auto CPU GTL Volage Reference = Auto NB GTL Voltage Reference = Auto Legacy USB = Disabled for Memtest, Enabled afterwards.Shut the system down. Boot to the Memtest CD with that single stick and allow for two full paasses. Shut the system down. Remove the first stick and insert it in slot two. Repeat memtest. Shut the system down. Remove the first stick and insert it into slot three and repeat memtest. Do the same for the last slot. You have now tested one stick and all four slots. Shut the system down and remove the first stick. Insert the second stick in slot one. Retest. Shut the system down and remove the second stick and insert the third stick in slot one. Repeat Memtest. Do the same with the last stick. You have now tested all four sticks. Now test for the Dual Channel Mode function of the memory controller. Insert a stick in slot one and three and memtest. Remove the set and insert the second set in slot two and four and memtest. Finally, insert a stick in slot one and slot three, a stick in slot two and slot four and repeat Memtest. If Stable enter Windows and post screenshots of CPU-z's CPU, Memory and SPD tabs. Link to comment Share on other sites More sharing options...
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