How many processors does Windows 7 support

Question

0.00/5 (No votes)

See more:

Hi,
This question might be very basic. But i want to know How many processors does Windows 7 support.

Any link to Microsoft site will be appreciated.

Regards,
Prafulla Vedante

Posted 26-Jul-11 21:13pm

PrafullaVedante

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Kim Togo · Answer 1 · 2011-07-26T21:22:00

Solution 1

All 32-bit versions of Windows 7 can support up to 32 processor cores, while 64‑bit versions can support up to 256 processor cores.

http://windows.microsoft.com/en-US/windows7/products/system-requirements[^]

Posted 26-Jul-11 21:22pm

Kim Togo

Updated 26-Jul-11 21:23pm

v2

Comments

PrafullaVedante 27-Jul-11 6:41am

I have installed Windows 7 on my machine with two quad core processors. Ideally it should show 8 processors in the task manager performance tab. But it is showing only 2.

Why is it so ??

Kim Togo 27-Jul-11 7:08am

Perhaps you have to "enable" all cores or "Hyper-threading/cores" in the BIOS ?

PrafullaVedante 27-Jul-11 8:01am

How to do this ?

Kim Togo 27-Jul-11 8:03am

Reboot your computer and enter BIOS (press DEL or F12) and look and search for something that has to do with CPU/Cores/Hyper-threading etc.

But it ALL depends on what type of computer/manufacturer you have.

Sergey Alexandrovich Kryukov 28-Jul-11 2:17am

My 5.
--SA

Kim Togo 28-Jul-11 2:21am

Thanks SA

Member 9000582 · Answer 2 · 2012-06-19T20:01:00

*This answer given under the assumption of a programming context*

I would like to add something to Kim Togo's statement.

In C# programming, and presumably the .Net framework, process affinity is stored in an IntPtr value, and, unless I'm mistaken, that is 64 bits. (Each bit represents whether or not the process is allowed to run on a certain processor.) So, this would imply that the maximum supported processors of the .Net framework is 64.

Even if Windows supports 256 processors, almost certainly there are frameworks (besides .Net) that only support less.