Memory Tags: Memory RAM Last response: January 26, 2013 5:28 AM in Memory Share nag shankar January 26, 2013 5:17:31 AM it says only 3.85GB is usable in 4GB RAM !!! can we alter it? i mean, can increase that usable memory??? More about : memory Botnus January 26, 2013 5:28:44 AM No you can not. Some memory is always set aside for the necessary services that allow your OS to run. This being the case, your usable memory will always be less than the amount of RAM actually provided by the memory modules you have installed. m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedIf I want better anti aliasing and v-sync, do I focus on core clock or memory clock? Forum SolvedMemory MHz differences Forum SolvedMemory Speed Problem Forum SolvedVery low WEI for i7-3930K, memory and graphics for desktop pc. Slow pc Forum SolvedMixing high and low profile memory Forum SolvedA LOT of system memory error dump files Forum Solvedhow to now if my memory will work? Forum SolvedMemory Compatibility with MSI A78M-E45 Forum Solvedgskil memory for z97 Forum SolvedIm running Win 8.1 and have a Q9550 2.83ghz processer on a Asus P5QL Pro Motherboard 4gb memory with 2 xl ATI 4600 HD graphic Forum SolvedMy memory is 1600Mhz but my BIOS says it is 800MHz, what do i do to make it 1600MHz? Forum SolvedAMD processors and faster than 1866 memory? Forum SolvedShowing 3 GB Shared Sytem Memory, only set to 32 MB Forum SolvedProcessors and dual channel memory Forum Solvedmemory tracers help Forum SolvedWhat's max shared memory 2Gb Forum SolvedReboot loop after installing additional memory in Intel DH55TC. Forum Solvedwhat does "physical memory dumps" means? appearing in blue screen Forum SolvedGA-B85M-DS3H + Pentium G3258 won't clock memory to 1600MHz Forum SolvedLowest memory timings available at 4gbx2? Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !