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2x TWIN2X4096-6400C5DHX with Asus P5Q Pro


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Just got 2 kits of TWIN2X4096-6400C5DHX put in and wont post. have to keep powering pc off and off for 10 min to get it to boot up ok.


Put 1 set in A1, B1 other in A2, B2

DRAM V = 2.00

DRAM Frequency = 667


everything else default/auto.

Also done memtest for 4 passes and no errors.


PC spec:

Motherboard: ASUS P5Q Pro

Processor: Intel E8600

Video: ATI HD 4850


DVD writer

PSU: corsair 450w


Once its powered up it works fine i just cant deal with switching it off and on for 10 min.


Any settings i can chnage that might help?

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I would set the memory frequency to DDR667 and increase the memory Hub Voltage (NOT Memory VDIM) it will be called like NB or NB/MCH voltage. And I would increase it +.2 Volts and try setting the TRFC to a higher setting if possible like 64.
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Got it working! was playing with over clocking settings etc but nothing seemed to work. It was ok at NB=2.0 and dram=2.10 but still some issues. Reset everything back to default and set nb=1.20 everything else auto/default and it worked fine for some reason.


Now thinking about getting a Asus ATI Radeon HD 6950, might need to upgrade my PSU thou. Just waiting on my headset being sent back from you guys and im good to go for skyrim :D

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