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I am using a Dell Latitude 6410 laptop with Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz processor. I am not sure how many core it supports, but I assume it should be minimum of 2. But Windows XP task manager seems to identify only one core. Why is that?

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Which service pack are you using? It might be that you need the latest service pack to support multicore processors... –  Mokubai Aug 18 '10 at 7:56
    
I use Windows XP SP3 –  Manoj Aug 23 '10 at 3:48
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up vote 1 down vote accepted

Windows XP Professional can support up to two processors regardless of the number of cores on the processor, Microsoft Windows XP Home supports one processor. The OS sees a single CPU, it's up to the application to see the cores and then take advantage of multi-threading.

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Does that mean I cannot see the usage of individual cores from task manager? But I thought I have seen it before. Also how to identify the number of cores in the processor? –  Manoj Aug 18 '10 at 5:26
    
Try Process Lasso, it should show the cores and their current usage: bitsum.com/prolasso.php –  octa Aug 18 '10 at 5:28
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