Windows 7 64bit RAM problem Tags: RAM Windows 7 Memory Last response: February 18, 2014 11:44 AM in Memory Share Radu Bortan February 18, 2014 9:25:02 AM Hi. I have a PC running Windows 7 Home Premium with 6GB of DDR3 RAM. Sometimes my PC gets really slow. When i open the Task Manager in the Performance menu it shows this : Why only 4115MB of 6111MB are available? Sometimes it gives me this : Why only 1123MB are available? And how can the quantity of used cached RAM be bigger than the available quantity? Why it doesn't use all my memory? It never uses more than 5000MB. More about : windows 64bit ram problem Reply to Radu Bortan k1114 a b $ Windows 7 a b } Memory February 18, 2014 11:44:20 AM Total is the total usable. Cached is cached. Available=total-used Free=total-cache-used If you have 6gb total and 4gb is available, it means you have 2 gb used. When you have near 1 gb left, windows will start paging more aggressively. Reply to k1114 m 0 l Ask the community Post an answer Related resources Kingston 4GB DDR3 RAM KVR13N9S8/4 problems with my Windows 7 64-bit OS Forum 64bit Windows 7 Ram problem ?? Forum SolvedHow Much RAM can Microsoft Windows 7 Professional SP1 64-bit - OEM hold? Forum SolvedWindows 7 64-Bit using too much RAM Forum Solved1gb ram Windows 7 64bit with readyboost Forum Solvedi have intel core 2 duo t6400 2.00ghz with 2gb ram can it support windows 7 64bit? Forum SolvedWindows7 64bit 6GB RAM installed, computer only detects 4GB Forum Solved14GB RAM installed but only 7.98GB usable Windows 7 64-bit Forum SolvedI use 2 gb ram(ddr2).. may i get better performance in by 64bit windows 7.??? Forum SolvedI use 2 gb ram(ddr2).. may i get better performance in by 64bit windows 7.??? Forum Ram Problem with windows 8.1 64bit Forum SolvedWindows 7 Home Premium 64bit RAM usable 3.84GB out of 4GB Forum SolvedWindows 7 64bit freeze/Start-up Repair/Won't reboot after RAM installation Forum SolvedKingston 4GB DDR3 RAM KVR13N9S8/4 problems with my Windows 8.1 64-bit OS Forum SolvedUpgrade from 4x2 GB to 2x8 GB Ram results in strange Windows 7 64bit behavior Forum SolvedOnly 3GB of 4GB usable RAM on 64bit windows 7 D: Forum SolvedWindows 7 32bit or 64bit for 16GB RAM Forum Windows 8 64-bit i7 laptop with 8GB of RAM lagging like crazy Forum SolvedSystem only recognizes 3.25 GB RAM, but I have Windows 7, 64-bit Forum SolvedWindows 7 64-bit showing 4GB RAM instead of 6GB Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !