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How to tell x64 or x86?


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#1 joshmurray

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Posted 05 January 2012 - 10:48 AM

We all know there are Microsoft Operating Systems designed to be used with different processor architectures. For example there is a Windows 7 64bit and a Windows 7 32bit. You cannot install a x64 OS on a computer with a x86 processor, however you can install a x86 OS on a system with a x64 processor. My question is what is an easy way (if any) to tell if your system is 64 bit compatible when you do not have a 64 bit OS installed. For example say you have Vista 32 bit installed and you want to upgrade to Windows 7. You would like to install the 64 bit version but must be able to ensure compatibiliy. I do not want to have to contact the pc manufacturer for such a simple inquiry. Any solutions? and remember most BIOS do not tell.

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#2 hamluis

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Posted 05 January 2012 - 11:32 AM

<<You cannot install a x64 OS on a computer with a x86 processor,>>

Not true...you cannot install a 64-bit O/S...on a 32-bit CPU.

"X86" is only part of the description, X86-32 is the full description indicating only support for 32-bit processing.

Unless I'm misinterpreting what I can read...since 2003-2004, various CPUs have been manufacturered which carry the "X86-64" tag for specs.

http://en.wikipedia.org/wiki/X86-64

Most processors made 2003-2004 and afterwards...today can run 64-bit O/Ses, as well as 32-bit.

http://support.apple.com/kb/ht3696 (since all of above applies to PCs, thought that I should throw in some Mac data).

Louis

#3 LucheLibre

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Posted 05 January 2012 - 01:10 PM

About the only PCs nowadays that don't have 64-bit processors in them are netbooks.

But simply put, if it's an OEM PC, look up its model number, google its specs, and there you go.

If its custom, use a LiveCD such as Hiren's BootCD and run one of the CPU identification utilities.

Of course, if the PC has Windows on it, then a simple Start > right-click My Computer will tell you what processor it has. Google it, and there you go.

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#4 joshmurray

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Posted 05 January 2012 - 02:02 PM

That about sums it up. Thanks




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