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8GB recognized by BIOS instead of 16GB on ASUS P7PF55D Pro


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I have purchased a pack of CORSAIR 16 GB RAM.

The complete reference is : CORSAIR DDR3 16GB (4*4) CMP16GX3M4X1600C7


The motherboard is an ASUS P7PF55D



The manual indicates that the maximum memory supported is 16 GB :

4 x DIMM, Max. 16 GB, DDR3 2200(O.C.)*/1600/1333/1066 Non-ECC,Un-buffered Memory

Dual Channel memory architecture

Supports Intel® Extreme Memory Profile (XMP)



However, only 8 GB are currently recognized by the mother board.

I have already updated the BIOS to the most up to date firmware provided by ASUS.


- Is this issue related to the fact that our motherboard supports Dual Channel (the memory is Quad Channel)?

- Is there any way to get 16 GB recognized by the motherboard ?

- If not, do you have recommendations (with complete references if possible) on what memory I should purchase in order to get the maximum of 16GB working on this motherboard ?



Thank you very much for your help,

Best regards,



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