Here is a screen shot comparing what should be listed in Windows device manager with and without Hyper-threading enabled.
HT –OFF (the machine is listed as a ACPI Uniprocessor PC) -

HT –OFF: Task manager -

HT-On (the machine is listed as a ACPI Multiprocessor PC) -

HT-ON: Task manager -

As an example here is Hyper-threading enabled on a i7 980X which has six cores –


The F-5 info in OpenRails shows “Processors=12” -
HT –OFF (the machine is listed as a ACPI Uniprocessor PC) -

HT –OFF: Task manager -

HT-On (the machine is listed as a ACPI Multiprocessor PC) -

HT-ON: Task manager -

As an example here is Hyper-threading enabled on a i7 980X which has six cores –


The F-5 info in OpenRails shows “Processors=12” -


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