Win7 (pro 64bit) recognizing all 12GB but saying only 6GB is usable?! Tags: Memory Last response: March 26, 2010 3:52 PM in Memory Share farbs March 26, 2010 3:29:00 PM Hello I recently just finished building my machine Gigabyte GA-X58A-UD3R motherboard 12 GB (6x2GB) G.Skill ddr3 tripple channel memory Got windows 7 professional 64 bit installed Went into system specs and it says "12GB (6GB Usable) I updated the bios to F5 and rebooted, it showed all 12GB usable!! I shut down the machine, woke up this morning turned it on, and back to 12GB (6GB Usable) I went into msconfig, boot, and made sure the max memory is unchecked. Ive searched and seen this problem, but Ive yet to find any solutions. Please help More about : win7 pro 64bit recognizing 12gb 6gb usable farbs March 26, 2010 3:52:34 PM CCleaner also showing 12GB What gives? Can't find your answer ? Ask ! Publish Related resources: ForumWin7 ( pro 64bit ) recognizing all 12GB but saying only 6GB is usable ?! ForumWin7 64bit 6gb RAM shows only 2gb usable Forum64 bit Win7 , 6GB memory but only 4GB usable ForumOnly 2gb usable , but 6gb available? ForumOnly 4gb of 6gb RAM listed as " Usable " ForumOnly 2/4 GB usable on win7 x64 core i7 860, GB-P55-UD3R ForumWin 7 64-bit doesnt use all installed RAM ForumWin7 won't install in 64-bit ForumGA-X58A-UD5 6GB ram (4GB usable ) Forum12GB ddr3 1333MHz or 6GB ddr3 1866 MHz? ForumI7 12gb Rig very low Passmark Scores?!?!? WHATTT Forum2.99GB usable of 6GB total Forum6GB of RAM memory installed but only 3.99GB useable??? Forum32GB recognized.... 11 usable ????? ForumIs 32 Gb SSD big enough for 64bit Win7 HP? ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumInstalled 4GB RAM but only 2GB is being used ForumDownload sony VGN-CS230J drivers for win7 Forum12gb of ram installed but only see 8gb ForumRAM only works when warm? More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !