Why vista 32bit does not support over 3 Gb ram

[ananisikim]

Can I install 64 bit over 32 bit or have to format and reinstall 64bit one.
or windows 7 32 bit can see 4 gb ram ?

I got samsung r510 laptop

 

[RT]

Vista, seriously? get windows 7 or 8.

http://windows.microsoft.com/en-in/...and-64-bit-windows-frequently-asked-questions

 

[wedge1001]

if i remember right: you can't upgrade from 32bit to 64bit.
you have to reinstall everything.
And better use 7 or 8

no. 32bit has the limit of 4GB containting everyhting that has memory.
so. 1gb for Graphics -> 3GBs for the rest aka the ram.

 

[ananisikim]

 

[l0calh0st]

It's all about the bits and bytes.

 

[MWMaster]

Depending on the version of Windows Vista that is installed,
A 32-bit version of Windows Vista can access up to 4 GB of RAM.
A 64-bit version of Windows Vista supports from 1 GB of RAM to more than 128 GB of RAM.
Source: http://support.microsoft.com/kb/946765

 

[juraska]

Because 32 bits are able to represent numbers up to 232 − 1 = 4294967295 = 4 GiB − 1 and therefore address up to 232 individual bytes which would be 4 GiB then.

There are ways to circumvent that, though. For example using PAE even a 32-bit operating system can support more memory. Historically this has most commonly been used on servers, though. Also, the non-server Windows SKUs don't support it. By now all that is moot, though, given that 64-bit CPUs, OSes and driver support are commonplace.

SRC http://stackoverflow.com/questions/1119278/why-does-a-32-bit-os-support-4-gb-of-ram

 

[shadow.prx]

Yea you need 64bit OS and no you cant just upgrade from 32bit to 64bit you need a fresh install every app installed on your system now will only run on 32bit.

Srsly upgrade to windows 7 64bit you will be so happy being able to use more ram and a more stable os.

 

[ananisikim]

u mean windows 7 64bit is good for me , thanks