ASUS P7P55-LX not recognizing 16GB RAM (7.99GB usable)

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Jordan Gomm

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Sep 5, 2013
2
0
10,510
Hi,

I recently upgraded the memory in my computer from 8GB to 16GB, but only 8GB are being recognized, meaning I have effectively paid for nothing!

They are 4GB sticks (KHX1600C9D3B1/4G) x 4 1600MHz DDR3

I am on Windows 7 Ultimate, and my resource monitor shows 8201MB Hardware Reserved.

http://i.imgur.com/517XTsS.png (Can't use img tags as it does not think I have validated my email address yet!)

I have reseated them over and over and also booted with each stick individually to confirm that they all work. If I boot with 3 sticks I just get 12GB installed (7.99GB usable)

Any help and advice is greatly appreciated!

Thanks! :)

Jordan

EDIT: Here is what CPU-Z outputs: http://pastebin.com/e4qY84GE
 

Jordan Gomm

Honorable
Sep 5, 2013
2
0
10,510
Thanks for your advice guys, turns out the P7P55LX has some funny slots with only one clip to hold the DIMMs in! Just needed a good press on the lower halves of the last two.

Thanks again!
 
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