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After installing a second CPU, NT still recognize only one CPU processor. Why?

April 26, 2017CPU NT processor recognize

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After installing a second CPU, NT still recognize only one CPU processor. Why?

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When moving from a single CPU to dual-CPU, multiprocessor versions of a number of NT files, including the HAL and the OS kernel, must be installed. The UPTOMP.EXE utility, contained in the NT Resource Kits, installs the multiprocessor files. The files can be installed manually. Finally, if you install the multiprocessor files on a system to which a Service Pack has been applied, you probably need to reapply the Service Pack after running UPTOMP.EXE and before rebooting. Until you reapply the Service Pack your disk contains a mix of file versions, with the multiprocessor files at the revision level of the distribution media and files already present at the Service Pack revision level. Such a mix of versions can cause your reboot to fail. (see the MS Knowledge Base articles Q156358 “How to Manually Add Support for a Second Processor” and Q168132 “After Applying Service Pack NT Reports Single Processor”). The MS Knowledge Base article Q142660 ( http://support.microsoft.com/support ) “Upgr