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Have quad core only one processor shows in sys info but four in device mngr.???

Last response: in CPUs
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December 17, 2009 9:08:57 PM

Is XP using all four processors if I can only see four in device manager not in system information??
a b à CPUs
December 17, 2009 9:38:47 PM

yes it is normal.
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December 17, 2009 10:12:49 PM

Related question: When I monitor CPU usage (using task mngr) while doing very intense photo manipulation, the most I get is 25% usage. This leads me to believe Windows is only recognizing one core. ????
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a c 83 à CPUs
December 17, 2009 11:52:45 PM

Do you have 4 cpu graphs? You should have one for each core. What program are you using? Most software, especially if its older can only use one core, there for 25% of your processor.
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December 18, 2009 2:37:04 PM

No only one. I did get over 60% when using photoshop, as opposed to Corel Paint Shop Pro which only went to 25%. Do I need to reinstal Windows? I tried to delete the cpu from devise manager then restart but still only one processor shows up in system information. Help!!
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Best solution

a c 103 à CPUs
December 18, 2009 3:43:53 PM

1 Physical processor with 4 cores.

Run Prime95 with 4 threads and then check cpu usage, it should show 4x100%.
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December 19, 2009 4:01:15 AM

Thanks so much. I tried it and 4 at 100% showed. I am guessing that means all is well even though system info only shows one cpu?
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a b à CPUs
December 19, 2009 4:03:30 AM

yes.... yes and yes for the last time. it is fine.
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December 19, 2009 4:12:04 AM

Whew.....
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