Solved Windows 8.1, I have 16 Gb DDR3 Ram, but it only looks like it's using 3 max. help? Tags: DDR3 Windows 8 Motherboards Memory Last response: February 25, 2014 10:43 PM in Memory Share rgr1990 February 25, 2014 10:33:58 PM as the title says Motherboard says it can have up to 32GB, i have 16 GB Corsair Vengeance in right now, but when i open my task manager and look at performance, it looks like it'll only use up to 2.9 " alt="" class="imgLz frmImg " /> More about : windows ddr3 ram max Reply to rgr1990 Best solution Ahmadjon a b * Windows 8 a c 247 V Motherboard a b } Memory February 25, 2014 10:43:32 PM Is your OS 32bit or 64bit? If 64 read this http://superuser.com/questions/56157/why-is-all-my-extr... Reply to Ahmadjon Share bigpinkdragon286 a b * Windows 8 a b V Motherboard a b } Memory February 25, 2014 10:43:39 PM If this is a custom built computer, look in your motherboard manual for support memory configurations. You may be running an incompatible configuration. Reply to bigpinkdragon286 m 0 l Ask the community Post an answer Related resources 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 Solved8 GB of Fully Working RAM, BIOS and Windows 8.1 64 Bit only let me use 4/3.9? Forum SolvedKingston 4GB DDR3 RAM KVR13N9S8/4 problems with my Windows 8.1 64-bit OS Forum SolvedI am using AMD FX8350 processor with biostar a880gz motherboard with 4gb ddr3 ram.I would like to is it good motherboard for a Forum Can I run Windows 8.1 or win7sp1 using Only the one 4GB module of a 2x4GB kit RAM ? 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 Solved8 GB RAM, BIOS says 8, but using 4080 MB. Windows 8.1 64 Bit says 8, but using 3.90 GB. Going on for ~2 months Forum does windows 8.1 recognize 32gb ram or does it have to be the pro version to use all 32gb like win 7 Forum Windows 8.1 says 8.00GB of RAM installed only (3.99GB of RAM usable) Forum SolvedHelp me please. My PC keeps freezing and my 16gb ram is only at 3.20gb Forum Solved3.45GB usable with 6GB RAm in Windows 8.1 (64bit) help. Forum Using 8 GB RAM, but BIOS and Windows say only 4080 MB/3.9 GB are usable! No answer for 3 months! Forum My windows 7 64 only detects 4gb ddr3 ram i have 8gb ddr3 ram installed Forum 4GB of DDR3 RAM w/ only DRAM Frequency of 532MHz!? Help! Forum Can i use windows 7 64 bits with i3 and 2GB DDR3 RAM? Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !