More than 4 GBytes RAM on Socket939 system?

O. Hartmann ohartman at mail.uni-mainz.de
Wed Feb 23 18:16:33 GMT 2005


David O'Brien schrieb:

>On Wed, Feb 23, 2005 at 10:21:31AM +0100, O. Hartmann wrote:
>  
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>>Will it be possible to address more than 4GBytes of RAM with the above
>>mentioned board (nVidia nForce4-SLI chipset)?
>>    
>>
>
>Yes.  If you can install >4GB RAM, the CPU+motherboard will use it.
>
>  
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>>The limitations are settled in the chip core, I think.
>>    
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>No the limitation is with the CPU, which has 40 physical address lines.
>So you use 2^40 bytes of RAM.
>
>  
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>>AMD64 processores only address 4 memory slots and can not address
>>128MBit memory chips,
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>What is a 128 MBit chip?
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>

Dear David.
I found this info on ASUS homepage for the A8N-SLI and it means (I think)
a single IC, 128MBit x 8 organized.

Thanks for this really good news!

>  
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>>But what is about 2GB modules as I mentioned above?
>>    
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>See the recomendations for your motherboard.  The motherboard+CPU can use
>2GB modules, but some aren't made well and aren't fully to JEDEC spec.
>So do some research to find good 2GB DIMM's.
>
>  
>



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