ato_zee;528113 Wrote:
> Vista 64bit supports 4GB, but depending on the motherboard you may only
> see just over 3GB. Like my shiddy Asus P5VD2-X shows 4GB Crucial
> installed, 3.268GB available, that's before Vista 64bit boots. Vista
> only sees the available memory. Last time I buy Asus. I think 32bit
> Vista may have a 2GB limit.
This problem is not limited to Asus, but just about every manufacturer.
The deficit in installed and available memory is a result of the use of
onboard devices that still utilise 32-Bit address spaces, making that
memory unavailable for use by the system. This is an issue we'll
continue to see untill device manufacturers make a solid move to use 64
bit addressing for their devices. This isn't likely to happen anytime
soon, though.
Vista 32-Bit can see a maximum limit of 4GB, because that is the
physical limit of 32-Bit addressing (2^32 = 4,294,967,296 bytes or
4096MB or 4GB).
Vista 64 Bit is another animal entirely, and depending on which version
of Vista x64 you use, is software limited to betwen 8GB and 128GB of
memory. These limits are enforced because by the time anybody can build
motherboards and memory chips capable of the maximum limit of 64 Bit
addressing (2^64 = 18,446,744,073,709,551,616 bytes), then even Windows
Seven will be considered retro!
To get the correct MegaByte (MB), GigaByte (GB), TeraByte (TB),
PetaByte (PB), ExaByte (EB), ZetaByte (ZB) and YottaByte (YB) values,
just keep dividing the byte values I gave above by 1024.
Yowza! I'd kill for a machine with even 1EB of solid state storage!
--
dzomlija
____________________________________
Peter Alexander Dzomlija
Do you hear, huh? The Alpha and The Omega? Death and Rebirth? -And as
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