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I have a Dell Dimension 9150 running Windows XP and Ubuntu 12.04 . Both are 32bit.

Could I load a 64 bit Ubuntu OS ? For instance I am limited to 3.7gb RAM on 32 bit. If I unloaded Windows and ran only Ubuntu, could I use a 64 bit version and would this relly make the machine a 64 bit machine?

tumchaaditya
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Mark
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2 Answers2

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Your processor is either 32 bit or 64 bit and you can not change that.

You can run 32 bit OS on a 64 bit chip, but you can not run 64 bit OS on a 32 bit chip.

To see if your processor is 64 bit, with linux

grep 'lm' /proc/cpuinfo
Panther
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You have Intel Pentium D which is capable of running 64-bit OS.
So, you should be able to install 64-bit OS assuming you satisfy other requirements.

tumchaaditya
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