Problem with new ram Tags: Chipsets RAM Motherboards Last response: November 15, 2011 9:45 PM in Motherboards Share dannny November 14, 2011 8:43:40 AM prblm with ram i just bought new ram of 2gb 850mhz originally i had 2gb now the total should be 4gb but system properties is showing "3.25 usable" i am unable to understand??? More about : problem ram | E-mail me updates | Report abuse Register or log in to remove kaweee November 14, 2011 10:06:34 AM That simply means you are using a 32bit version of Windows To make use of all 4GB , you need to upgrade to a 64bit version | Report abuse dannny November 15, 2011 11:12:11 AM thanks kaweee okay but why so in 32bit version of windows? when i play games then how much is utilized? | Report abuse kaweee November 15, 2011 11:22:43 AM I'm not too sure about why but it seems like an OS limitation Games shouldn't take too much ram so I wouldn't worry about it | Report abuse Related ressources Problem with new RAM - Forum Problem with new ram - Forum New MOBO/ RAM problem - Forum Problem with new RAM - Forum New RAM problem - Forum Ask the community Publish jsc Motherboard Master November 15, 2011 11:58:00 AM Memory management is a pretty complicated subject, but basically a 32 bit operating system is built around an address space of 32 lines. 2^32=4GB. But it is worse than that. Intel CPU's use memory mapped input/output - devices are assigned address space that then cannot be used for memory. The end result is that you generally have around 3.25 - 3.5 GB RAM available. 64 bit OS can address 2^64 or 4GB*4GB or a bunch of RAM, well 16 exabites (16 x 10^18). Limitation is generally the motherboard. | Report abuse dannny November 15, 2011 5:56:09 PM thnx kawee & jsc jsc what do you mean by motherboard limitation? do you recommend me to upgrade to 64 bit? | Report abuse kaweee November 15, 2011 9:45:43 PM Just stick with 32bit, your programs will run absolutely fine. | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Motherboards>Problem with new ram> Related ressources: ForumNew Mobo, RAM and CPU - intermittent power problem ForumGetting new RAM PROBLEM ! HELP please!! ForumNew Build beeps 3 times, won't show display, RAM problems ForumProblem with new ram please help. ForumLikely source of RAM problem with new build ForumNew RAM , Problems ForumProblem with RAM on new build ForumWindows 7 Memory Diagnostics detected "Hardware problems" with new RAM ForumNew RAM problem ForumProblem with new RAM ForumA driver problem when I installed my new ram ForumWhich is better memory Forum[Solved] Problem with Corsair Vengeance ForumProblem with 4GB(2x2GB) RAM in ASUS P5KPL ForumSATA Problem with Foxconn G31 More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !