32 GB ram installed 26 GB usable Windows 8.1 64 bit Tags: RAM Windows 8 Memory Last response: March 5, 2014 7:57 PM in Memory Share rscentral March 5, 2014 7:49:41 PM 32 GB ram installed only 26 GB usable in windows 8.1 64 bit. More about : ram installed usable windows bit IRyannHD March 5, 2014 7:50:54 PM Then one of your ram ports or sticks are faulty, assuming you have 4x8. m 0 l EasyLover a b * Windows 8 a c 94 } Memory March 5, 2014 7:57:23 PM Pl confirm are you using built-in graphics card or dedicated graphics card? Run memtest86 on your RAM and post the result here. Also provide CPU-Z [Memory Tab] values here. m 0 l Can't find your answer ? Ask ! Publish Related resources 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 Solved***URGENT*** 4 Months passed, no solution! 8 GB RAM recognized by BIOS and Windows 8.1 64 Bit, only 3.9/4080 MB usable! Help! Forum Solved3.45GB usable with 6GB RAm in Windows 8.1 (64bit) help. Forum Have 4GB installed ram but only 2.75GB usable Windows 8.1 pro x64 Forum 8 GB RAM, says 4 in BIOS, 3.9 usable in Windows 8.1 64 Bit Forum Solved14GB RAM installed but only 7.98GB usable Windows 7 64-bit Forum Solved8GB RAM installed Windows 8 64bit says (3.9 GB usable). Help! Forum Windows 7 Home Premium 64-bit Laptop, 6GB RAM installed 3.99/4GB usable Forum 8GB RAM installed. Only 7.69GB usable in windows 7 64bit Forum Installed memory ram 8 gb usable 2 66 gb in window 7 32bit Forum Asus P5LD2-VM-CR: Windows 7 64bits 4GBram only 3.2gb ram usable Forum MSI 970A-G46/fx-6300 Black Edition CPU windows 8.1 64Bit updated bios and still limited to usable memory 3.5 gb out of 8 gb. Forum SolvedWindows 7 64 Bit 4GB installed but only 3.48 usable Forum 8gb of memory only 3.98 usable - windows 8.1 64bit operations system Forum 8.00GB memory (3.48GB usable) Windows 8.1 Professional (64-bit) Forum Solved4 gb installed but only 3.5 usable in 64 bit windows 7 Forum Solved4GB of RAM, only 3GB detected (1.75 usable) 64 BIT WINDOWS Forum Windows 8.1 says 8.00GB of RAM installed only (3.99GB of RAM usable) Forum Win8 32 bit sees 8 GB RAM (usable 3.5 GB) but 64 bit restarts on 8 GB of RAM. Please help. Forum Solvedcan i play rust with a windows 8 laptop 4gb ram 3.47 usable with a 5 ghz processer 64 bit can i run it? Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !