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XP sp2. Task Manager graph only showing 1 CPU

Posted on 2006-11-25
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Last Modified: 2013-12-03
Hello,

I have a Dell Precision Workstation with Windows XP SP2 and 2 Xeon CPU's and am only seeing 1 processor in the task manager graph.
So far I have checked the following:

Bios sees 2 processors (0 and 1)
Hyperthreading is turned OFF in the bios. (recommended by the manufacturer of a software package we use)
Device manager under Computer shows ACPI Multiprocessor PC
Device manager under Processors shows 2 processors
Task Manager/Performance/View/CPU History/One Graph All CPU's shows 1 graph
Task Manager/Performance/View/CPU History/One Graph Per CPU shows 1 graph

Am I missing something? Thanks.

Steve
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Question by:sirvodka
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4 Comments
 
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Expert Comment

by:James_h1023
ID: 18021959
The processor performance section in task manager is "expressed as a percentage of total capacity" according to my windows book so i'm guessing that it works out the total from both your processors and then displays how much is being used!
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Author Comment

by:sirvodka
ID: 18022390
James,

Thanks for the response.

I would agree with your statement if looking at "One Graph All CPU's".

Funny thing is "One Graph Per CPU" is showing both CPU's today. Two graphs. Not sure why it has changed from what I was seeing the other day.

Steve
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Accepted Solution

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James_h1023 earned 500 total points
ID: 18022694
Oh right yeh sorry.  That is strange.  I remember reading somwehere about XEON chips and the way you can set them up.

One way was to have them both working simultanously all the time and the other was to have one working and then when the load got to much on that one the other would kick in to take care of extra load and then stop once it was acceptable for just one processor to be wokring.

Maybe yours is set up the latter so when you were checking tother day only one was working, and now both is!

Is strange though.
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Author Comment

by:sirvodka
ID: 18112808
A reboot of the machine solved the issue.

Thanks for your responses.

Steve
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