More processors assigned to Windows machine, not showing

[tstav]

I installed a client windows server 2008 R2 machine and assigned 4 sockets to it.
Later on I discovered that this machine needed more processors and I added 4 sockets to a total of 8.
Now, even though the processors appear in the windows device manager list, they do not show up in the task manager's performance tab.
So I have no way to see if they are actually functioning correctly.
Is there a way to fix this?

 

[tom]

looks like your win license does not allow more sockets. Assign cores instead.

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[tstav]

Thank you my friend.
You're absolutely right.
Doubling cores per socket did the trick.