Solved Windows recognises 8gb RAM but only 3.96gb usable Tags: Memory RAM Last response: December 16, 2012 9:38 AM in Memory Share DaCosta5396 December 15, 2012 12:53:21 PM Windows recognises 8gb RAM but it bsays only 3.96gb usable, any ideas how to solve it? More about : windows recognises 8gb ram 96gb usable Best solution rolli59 a c 241 } Memory December 15, 2012 1:35:56 PM In this go to things to try and try them http://support.microsoft.com/kb/978610 Share DaCosta5396 December 16, 2012 9:34:55 AM Best answer selected by DaCosta5396. m 0 l Can't find your answer ? Ask ! Get the answer DaCosta5396 December 16, 2012 9:38:26 AM Thanks for the help Fixed it....tested both dimms on their own and then put them both in at the same time booted to bios noticed they were only running at 900mhz so i moved them up to 1333 and voila! 8gb ram And i have no idea how m 0 l Can't find your answer ? Ask ! Publish Related resources 8GB RAM But 3.96GB Usable? Forum 8GB Installed But Only Using 3.96GB (4GB Hardware Reserved Ram) Forum 8gb Ram Installed, and detected by windows, but only ~4 (3.93) usable Forum 8GB RAM installed. Only 7.69GB usable in windows 7 64bit Forum SolvedI have 8gb of RAM but I only have 4gb usable. Forum Solved8gb ram installed, only shows 3.95gb usable. Pics inside Forum Solved8gb ram detected, only 2.98 gb usable! Forum Solved8GB of RAM only 5.98GB usable?? Forum Solved8GB Of Ram Installed, only 4 showing w/ 3.47gb usable (I think I fixed it) Forum Solved8gb or ram but only 2.92 usable Forum SolvedI have 8GB of RAM, only 4GB is usable? Help please. Forum Solved8Gb installed as Dual Channel but Windows says only 4gb is usable, why? Forum Solved8gb of ram only 4gb are usable ? Forum SolvedIs this normal? I have 8GB (only 7,89 usable) - Windows 7 x64 Forum 8gb RAM only 3.9 Usable Forum SolvedInstalled ram 8gb usable only 3.41gb...? Forum SolvedI have 8gb of RAM but only 1gb is usable Forum 8GB RAM usable in Win7 but only using 50% Forum AMD Radeon R9 RAM: 8GB installed but only 4 Usable Forum Only 3.97Gb of ram is usable out of my 8gb Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !