
06-07-2009
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Join Date: May 2009
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Re: upgrading from 32bit Vista Home Premium to 64bit
Originally Posted by Pingchaser
Vista Home Premium as all versions of Vista recognize up to 8gbs of ram. Home Premium is not the culprit, my guess is that is your mother board.
I know this is a late reply.
No, 32-bit versions of Vista cannot handle the full 4gb of memory, no 32-bit system can. The norm is about 3.25 - 3.75gb ...
I have Vista 32-bit and mine recognizes the 4gb is there but will only allocate 3.75gb of the 4.0gb. This is not because of shared VRAM as mine is dedicated.
My roommate who has almost the exact same laptop just a different brand only allocates at 3.5gb.
A 64-bit version, depending on the version of Vista you get can handle 8gb - 128gb. In theory though, 64-bit systems can use 18exabytes of RAM, because 2^64 = 18.446.744.073.709.551.616
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