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- RAM limit?
January 18, 2009, 12:22 pm
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to use same hard drive with all apps/data on it. I read of RAM limits
with some OS's. In fact it appears that I should not get over 3GB RAM
as this is all that this OS sees. Is that so?
To facilitate using 4GB RAM on a new MOBO, must I upgrade to another
OS version? Vista? 64-bit XP?
Re: RAM limit?
Yup, that's about the size of it. The reason is due to some
implementation choices made many moons ago, in short, a 32-bit x86 OS
can only access up to 4GB of address space, and with various hardware
needing chunks of that address space to itself, you're left with around
3.2GB or so available to physical memory.
To access more then 4GB of address space, you'll need to use a 64-bit
version of Windows, which requires 64-bit capable hardware and drivers.
There is no supported upgrade path for upgrading from 32-bit to 64-bit,
the only supported path is to reinstall the OS from scratch.
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