Windows XP x64 virtual machine (VMWare ESX) using only 2 CPUs (out of 4)

Posted by Mac on Server Fault See other posts from Server Fault or by Mac
Published on 2010-10-04T07:56:28Z Indexed on 2011/01/10 21:55 UTC
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Filed under:

windows-xp

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vmware-esx

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cpu

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x64

I just converted a physical Windows XP x64 machine with 4 CPUs to a VMWare virtual machine with 4CPUs (on a ESX server) using the VMWare Standalone Converter.

Everything worked just great, except that the OS now seems to use only 2 CPUs (when 4 are installed, see the following image). This must be a Windows XP issue rather than a VMWare issue, but I can not really rule out any reason at this stage.

Device Manager vs. Task Manager

What can I do?

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