Multiple CPU not showing in task manager

2

I have an i7 intel core. Normally it shows 8 cpu's in my task manager, however for some strange reason it does not anymore. I can't recall changing anything. I noticed this problem when I wanted to run parallel matlab code locally on 8 cpu's. It only allowed a max of 1.

However if I go to task manager I can see my 8 different processors. Also when I go to msconfig to boot.ini numproc says 1.

Anyone know what might cause this or how I can fix this?

Thx

Edit: It's windows XP 64bit btw

WtFudgE

Posted 2010-11-04T11:17:39.960

Reputation: 143

which version of windows? – akira – 2010-11-04T11:26:35.713

1You write: Normally it shows 8 cpu's in my task manager, however for some strange reason it does not anymore. And later: However if I go to task manager I can see my 8 different processors. I am confused: Can you see those 8 CPUs in the task manager, or not? – Suma – 2010-11-05T09:24:18.703

Answers

3

enter image description here

  1. Click the Start button.
  2. Type: msconfig
  3. Open it and go to the second tab called Boot.
  4. By clicking "Advanced Options..." you can change the "Number of processors",
    as shown with black arrows in the image above. It is best to just disable it so it auto-detects.

Tamara Wijsman

Posted 2010-11-04T11:17:39.960

Reputation: 54 163

disabling it did the job, thx!! – WtFudgE – 2010-11-09T14:20:34.560

1

If it's Windows 7/Vista, Install EasyBCD.

Click on advanced settings, and and uncheck "Limit Windows to x CPUs"

It should be something like:

enter image description here

Sathyajith Bhat

Posted 2010-11-04T11:17:39.960

Reputation: 58 436

0

Check the bios. In mine there is something like a MultiCore Yes/No setting.

Matt H

Posted 2010-11-04T11:17:39.960

Reputation: 3 823

Asked: 2010-11-04T11:17:39.960

Viewed: 3 974 times

Active: 2011-10-24T03:29:52.863