Just installed 12 gigs of ram on 64 bit Vista not all showing physical Tags: Memory RAM Windows Vista Last response: February 19, 2012 6:22 PM in Memory Share BagOsnarkz February 18, 2012 7:16:36 PM Hello, I have 12 gigs of ram that I have just installed (Upgraded from 3) however now my PC is only reading it as 4 Gigs after two restarts and I am unsure why My specs: 64-Bit vista 12.0 GB Single-Channel DDR3 @ 535MHz (7-7-7-19) MSI MSI X58 PLATINUM SLI(MS-7522) I've already verified that their wasn't a limit checked in MSCONFIG and per the manufacturer website the board can support upto 24 Gigs. Any advice would be appreciated More about : installed gigs ram bit vista showing physical h3sham a b } Memory February 18, 2012 9:32:09 PM bios reads all 12? m 0 l BagOsnarkz February 19, 2012 3:07:03 AM I'm 90% sure it was (though I must admit I'm not very knowledgeable with bios configs) that said, reseating the RAM resolved the issue. m 0 l Can't find your answer ? Ask ! Get the answer h3sham a b } Memory February 19, 2012 6:22:40 PM glad you managed to fix it m 0 l Can't find your answer ? Ask ! Publish Related resources Windows 7 64 bit showing only 3,12 GB of Ram 4GB installed! Forum 4 gig of ram, showing ups as 3.12 in windows 7 64 bit?? Forum 64bit System wont use more than 2 to 2.25 gigs of the 12 gigs of ram a Forum SolvedASUS P6T - Windows 7 Enterprise 64bit - Only Shows 4 of 6 Gigs RAM Forum SolvedJust installed 64-bit W7, coming from 32-bit Vista questions Forum Solved Installed Memory (RAM): 12.00gb (3.25gb usable) 64-bit. Help! Forum Vista 64bit, 6 gigs ram, 85% memory used at idle??? Forum Have vista 64x put ddr2 2gig+2gig physical memory shows 2gig Forum Windows 7 64 bit, 8 gigs of ram installed, 3.99 available? Forum 12GB RAM installed and only 8GB showing in Windows 7 Ultimate x64 Forum 32 bit Win xp on 64 bit machine showing only 50% of installed RAM Forum Windows Vista 64-bit showing 3.25GB RAM instead of 6GB Forum i installed 2 X 2 gb ram but pc shows installed 6gb in windows7 64 bit Forum Vista 64-bit - 12GB of Ram Forum Solvedi have install win 64bit in 4gb ram but it show 2.95 usable why???? Forum 64bit Windows 7 only recognizing 4GB of 12GB installed RAM Forum 12gb ram installed but only 8 physical available Forum SolvedSet VGA card to get ram from my 4gigs installed on 32 bit Windows 7 Forum GA-X38-DQ6 - Vista64 - Just installed 8GB ram. System will not boot? Forum Solved8GB Ram only showing 6GB 64bit Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !