System: 24GB ram (16GB usable) Tags: Asus Patriot RAM Memory Motherboards Last response: November 4, 2011 10:22 AM in Motherboards Share dockpaul November 4, 2011 7:59:28 AM Hello, I upgrade my memory from 6 to 24GB with Patriot 2 sets of 3 4GB sticks 1600MHz. To my asus P6TD deluxe. Computer only reads 24 but only 16 usable...?? More about : system 24gb ram 16gb usable Chirag Borawake November 4, 2011 9:34:25 AM Which is your operating system? Does your motherboard support beyond 16GB? m 0 l retired_59 November 4, 2011 10:04:02 AM Chirag Borawake said:Which is your operating system? Does your motherboard support beyond 16GB? Try reseating your ram,of course this is just a diagnostic suggestion to see if it will correct your problem. m 0 l Can't find your answer ? Ask ! Get the answer vitornob a b } Memory November 4, 2011 10:22:33 AM Maybe you using Windows 7 Home Premium 64 bits, don't you? This OS is limited in 16GB usable memory. Here's a list of limitations for 64 bits Windows 7: Home Basic: 8GB Home Premium: 16GB Professional: 192GB Enterprise: 192GB Ultimate: 192GB EDIT: (Got info from Microsoft in this website: http://msdn.microsoft.com/en-us/library/windows/desktop...) m 0 l Can't find your answer ? Ask ! Publish Related resources System: 24GB ram (16GB usable) Forum 24gb ram installed system displays only 16gb Forum Need help on my 24GB upgrade which shows 16GB usable Forum Solved24GB RAM installed, only 16GB useable? Forum Solved5.9GB usable of 16GB RAM Win7 enterprise 64bit Forum I used 4GB RAM but it is usable 3 24GB But why ? Forum Solved15.9 gb of 16gb usable (new ram) Forum Installed 16GB of ram only 7.99 usable Forum I recently installed a 4x4GB kit of DDR3 ram onto my motherboard. Windows 7 Pro 64bit is showing I have 32GB ram (16GB usable Forum SolvedMy Ram cards 16Gb and says only 12/8usable Forum Solved16GB ram installed, 3.5GB usable Forum 16GB ram (3.96 usable) Forum 16gb RAM but only 7.9 usable Forum 16gb of RAM but only 7.9 usable Forum 16gb RAM installed, only 7.95gb usable? Forum 16gb RAM installed, only 7.95gb usable? Forum 32GB of RAM 16GB Usable Forum 16gb installed memory (ram) only 2,91gb usable Forum 16GB RAM installed, 2.96GB RAM usable Forum Asus P7p55d-3 evo 16GB RAM installed 8GB usable Forum More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !