Can this CPU support 64 Bit Windows 7 - P4 Nothwood 3.40 GHz

whorsfall
whorsfall used Ask the Experts™
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Hi,

Can the following CPU support 64 Bit Windows 7.

I have attached a CPU-Z report from this machine.

URL: http://www.cpuid.com/cpuz.php

Codename Northwood
 Specification Intel(R) Pentium(R) 4 CPU 3.40GHz

No only am I interested in the simple answer but an explination on what I is or is not in the report so I can see why it is the case.

Thanks,

Ward.
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Commented:
No this processor Intel(R) Pentium(R) 4 CPU 3.40GHz is not capable of 64 bit support because it does not include the 64 bit instruction set. The Northwoods only support 32-bit operating systems. Intel processors didnt support 64 bit instructions until the 2nd generation Prescott line came out. Specifically your looking for EM64T in the instructions field.

Commented:
The highlighted section is what you want to look at.
em64t.png

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Commented:
Hi,

That is great. Just to ask two other questions:

1. Is there a model number that is reported in there somewhere so I can reference it back to Intels site.

2. Given the fact they are running a 32 bit version of windows, there is no way this would mask detecting the instruction set properly. (Dumb question maybee - but wanted to ask :)

Thanks,

Ward
Gary CaseRetired
Most Valuable Expert 2013
Top Expert 2009
Commented:
The CPU-Z report doesn't show an sSpec number to look up directly on Intel's Processor Spec Finder [http://processorfinder.intel.com/List.aspx?ParentRadio=All&ProcFam=483&SearchKey= ];  but it DOES show that it's a D1 Stepping, .13 micro technology, and Socket 478.    If you set those filters on Intel's Spec finder, there is only one 3.4GHz CPU -- which you can then simply look at the details of.

The simplest utility to show the 64-bit capability (or not) of a CPU (and also whether it supports hardware assisted virtualization) is this little gem from Gibson Research:  http://www.grc.com/securable.htm

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