What's the max memory (RAM) can Windows Vista 32 actually use?
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M$8 Answers
You might want to see if Ready Boost would work for you since you are running Vista. See" http://www.microsoft.com/windows/windows-vista/features/readyboost.aspx
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However, there is a major flaw that pushes the limit down a bit. Most 32 bit systems can only actually use 3 to 3.5 Gb of this actual RAM.
There is a giant hole in memory addressing that was present when computers where first starting to take the scene, but no one predicted we would actually NEED 4 gigs of RAM. In fact, the hole still exists in 64 BIT OS's, but again has been pushed way off into the distance.
In short, the most you can actually use on 32 bit is about 3.5 GB.
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Yes, somewhere around 4 GB or less is what Vista can handle. RAM is currently very very cheap. So 4 GB of a good name brand runs less then $40 right now. I noticed a major difference upgrading from 2 GB to 4 GB.
64 bit is the way to go if you are doing more intensive thing like photoshop or 3d programs.
Physical Memory Limits: Windows Vista
http://msdn.microsoft.com/en-us/library/aa366778.aspx
And personal experience from years of computer usage.
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No. 32-bit OS's can use more than 4GB of memory and Intel's PAE was designed to enable 32-bit OS's to use more than 4GB of memory. Microsoft's Windows 2000 advanced server supports 8GB.
The 4 GB memory limit is technically limited by the 32 bit processor; 32 bit CPUs literally cannot handle more addresses than are present in 4 GB of RAM.
Do you really need that much ram. Normal users can't tell the difference between two gigs and four gigs in normal every day use. If you are doing something that really needs that much memory, you should upgrade to a 64bit cpu anyway.
Depending on the size memory cards your machine uses, you might have to throw away some of your existing memory to get it up to 4 gigs.
The point I am making is that if you really need 4 gigs, you also need 64 bit and you can probably buy a new machine for little more than it will cost to upgrade the old one.
Personal opinion about upgrading machines.
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M$You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
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