Solved 32gb Installed (16gb Usable??) Tags: Memory Asus Corsair Dominator RAM Product Last response: December 1, 2012 11:38 PM in Memory Share SyrumX October 3, 2012 1:05:53 AM So let's jump into my specs: -ASUS Sabertooth Z77 -Intel Core i7-3770k -Corsair Dominator GT (4x8) :: http://www.newegg.com/Product/Product.aspx?Item=N82E168... -Geforce GTX 670 4gb sc -Thermaltake TR2 600w -Windows 7 Home 64bit I recently upgraded my ram, and the ram i chose was from the QVL on ASUS site for this motherboard. So what i dont understand is, why wont it use all 32gb of ram? More about : 32gb installed 16gb usable inzone a b } Memory a b Ĉ ASUS October 3, 2012 1:38:31 AM Are you saying that windows reports seeing only 16gb of ram? Not the full 32gb. That means either the motherboard is faulty or you have some bad ram. SyrumX October 3, 2012 2:14:00 AM No. it does report all 32gb of ram. But then is says 16gb usable. Even though this ram is qualified by my mobo. Installed memory (RAM): 32.0 GB(16.0 GB usable) Related resources Asus M5 A97 R.2 MOBO, FX8150 CPU INSTALLED 32GB SHOWS 16GB - Forum Installed 16GB memory, only 8 usable , please help! - Forum 32GB recognized.... 11 usable ????? - Forum Win7 Ram issue. Installed ram: 16GB ( usable 7.99) - Forum 16GB ram installed , 3.5GB usable - Forum Can't find your answer ? Ask ! Get the answer Best solution AlienIsGOD October 3, 2012 2:23:15 AM Share Are you using Win 7 home Premium? That version only supports up to 16GB physical ram, whereas 7 Pro and Ultimate support up to 192GB of ram. SyrumX October 3, 2012 2:25:50 AM Oh.. well that answers everything. Yes its Home Premium. Is there any reason for that though? Why is home limited to 16gb? SyrumX October 3, 2012 2:46:38 AM Best answer selected by SyrumX. Supermuncher85 October 3, 2012 3:23:46 AM SyrumX said:Oh.. well that answers everything. Yes its Home Premium. Is there any reason for that though? Why is home limited to 16gb? Because microsoft decided that 16gb should be enough for any home user and anything past that should require a "business" OS like professional and above. borisbulldog December 1, 2012 6:42:09 AM Supermuncher85 said:Because microsoft decided that 16gb should be enough for any home user and anything past that should require a "business" OS like professional and above. Does Win 8 support 32GB? bl00dyMurd3r December 1, 2012 8:11:31 PM borisbulldog said:Does Win 8 support 32GB? "32-bit versions of Windows 8 support up to 4 GB of RAM. The 64-bit version of Windows 8 Pro supports up to 512 GB while the 64-bit version of Windows 8 (standard) supports up to 128 GB." Taken from: http://pcsupport.about.com/od/windows-8/a/windows-8.htm So yeah, you could use 32 gigs just fine on 8 borisbulldog December 1, 2012 11:38:08 PM Thanks! Can't find your answer ? Ask ! Publish Related resources : Forum32GB Corsair RAM problems :( ForumMy Ram cards 16Gb and says only 12/8 usable Forum16GB 1600 or 32GB 1333 - VMware, Server 2003/2008, Gaming Forum16GB Ram and only 8GB usable Forum32GB kit vs 2 x 16GB kits (quad channel) ForumOnly 3gb Usable out of 4gb Memory in Windows 7 ForumEver need 16GB of ram? Forum16gb ram on P7P55D-E LX (8,00 Gb usable ) Forum" Installed memory(RAM): 8.00 GB (3.12 GB usable )" , what does this mea ForumInstalled 16gb od mem with a slower output Forum32GB setup 4 x 8Gb or 8 x 4GB ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumIntel DZ77RE&5K motherboard, and CMD16GX3M2A1866C9 16GB ForumGaming & Video Encoding - 8GB VS 16GB ForumOnly 3.25GB usable RAM of 8GB More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !