What does installed memory 4 00GB (3 00GB usable) Mean? Tags: Chipsets Windows 7 Memory Motherboards Last response: September 7, 2010 1:55 AM in Motherboards Share Anonymous Windows 7 Expert Memory Expert Motherboard Authority September 6, 2010 7:03:54 PM Hello, what does installed memory 4 00GB (3 00GB usable) Mean when I'm actually running windows 7 professional 64bit? More about : installed memory 00gb 00gb usable | E-mail me updates | Report abuse Register or log in to remove Emperus Memory Authority Motherboard Authority September 6, 2010 7:21:15 PM Are you running on onboard graphics.? In that case, 1GB of your system memory may have been reserved by the onboard video chipset to be used as video ram.. Thus the resulting amount of system memory left for the OS to use will be 3GB.. | Report abuse Anonymous Windows 7 Expert Memory Expert Motherboard Authority September 7, 2010 1:55:40 AM Thanks, I think that might be it. It says my I have a GeForce Go 7950 GTX total available Graphics Memory is 1791 MB Dedicated Video Mem 512 MB System Video Memory 0 MB Shared system Memory is 1279 MB | Report abuse Ask the community Publish Tom's Hardware>Forum>Motherboards>What does installed memory 4 00GB (3 00GB usable) Mean?> Related ressources: ForumInstalled memory (ram) 12 0Gb ( 4 00Gb usable ) Forum" Installed memory (RAM): 8.00 GB ( 3 .12 GB usable )" , what does this mea ForumWhat does it mean when my computer has 6gigs of ram installed but only 3 usable ForumNew Hard Disk WD-500GB Not detected in BIOS ForumInstalled 16GB memory , only 8 usable , please help! ForumInstalled memory 8gb 3 gb usable ForumOnly 3 gb Usable out of 4 gb Memory in Windows 7 ForumInstalled 4 gb of RAM memory , but BIOS says only 2.5gb are usable ForumIssue ForumGigabyte P55a-ud -8G ram installed ( 4 G usable ) ForumInstalled memory (RAM): 8.00 GB ( 4 .00 GB usable ) Forum18 GB MEMORY (RAM) INSTALLED : (10.5) USABLE Forum4 GB RAM installed , 3 .88GB usable ? ForumHelp understanding what usable means ( 3 .50GB usable ) Forum4 GB Installed - 2GB Usable ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumMy computer does not finish to boot Forum[Solved] Adding 1 gigabyte memory to my system? ForumWhat are these things? Blocking my SATA ports Forum[Solved] I5 CPU requires 3 sticks of memory? More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !