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2 pairs of TWIN2X2048-6400C5DHX + XFX NForce 680i LT SLI


jmsavoy

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I have two sets of twin2x2048-6400c5dhx, so that is 4 1GB DIMMs. My system is an XFX NForce 680i LT SLI and it will boot with 1,2, or 3 DIMMs installed, but when I install the fourth the system will not get to POST and makes no error beeps.

 

My memory voltage and timings are set to "auto" in BIOS/CMOS ... and currently they are 1.850v, 5-5-5-18.

 

Please advise.

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With 4 modules I would suggest setting the memory frequency at DDR667 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.
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