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 279 } 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 I put 4gb of ram reads only 2.99 ram usable on windows 7 Forum 8gb RAM, 3.99 usable Forum 4GB ram, but only 929MB usable on windows 8 32-bit solution Not all of my RAM is usable in Windows 7 32-bit Forum Not all RAM usable Forum 8gb ram only 3,5 usable Forum 4,00 GB (2,75 GB usable) - RAM Forum 8GB of RAM only 3.16 usable (W7 x64) Forum Usable ram in windows 7 Forum Why is 4 gbs usable out of 8 gbs Forum Windows 7 64 bit - All RAM not usable Forum Windows 7 64 bit 4 GB ram only 3.5 Usable Forum Usable Ram Forum Windows 7 only show 1 07gb memory usable Forum 2gb usable ram 4gb ram Forum Windows 7 installed (ram) 8 00 gb usable) Forum Installed memory 8gb 3gb usable Forum Dell vostro 400 core 2 duo windows 7 only 3 gb of memory usable Forum Windows 7 64bit shows 3.73GB usable memory with 8GB installed Forum Only 4gb Usable out of 8gb Memory in Windows 7 Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !