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Upgrade troubles


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I currently have installed on my Asus P5B Premium VE.

BIOS DATE: 07/13/07 VER: 08.00.12

My O.S is 32bit.


DIMM1: Corsair XMS2 CM2X1024-6400C4DHX

DIMM2: Corsair XMS2 CM2X512-6400C4

DIMM3: Corsair XMS2 CM2X1024-6400C4DHX

DIMM4: Corsair XMS2 CM2X512-6400C4


Originally I just had the 2x512 modules and all was fine.


Windows now reports that I have only 2GB of RAM.


I am not too sure how to set the timings, especially the voltages, manually. The 4-4-4-12 is easy enough but thats as far as I can go.


Any help would be much appriciated.



Here is the info reported by CPUZ:-



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I have now taken out the 2x512MB modules and would like to know what frequency my 2x1GB are running at.


I have manually set the timing in the bios:-


CL = 4

tRCD = 4

tRP = 4

tRAS = 12


I have also set the SDRAM voltage to 2.1


When I reboot the post screen tell me the memory is 6400 inteleaved ?

Does thsi mean the memory SDRAM clock is at 800mhz ?


CPU-Z info is :- http://www.imagehostdirect.com/images/l3ullets/cpuzmemory_1.jpg


Thanks for your help.

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