Thanks xStainDx for his post in Back Page news in our forums. He noticed a handy tool to test if your Intel Hyper-Threading configuration is working correctly. Mine is, check yours!
The Hyper-Threading Technology Test Utility is provided by Intel Corporation to test systems for hardware and software elements necessary to meet the Hyper-Threading Technology brand requirements for systems bearing the Intel® Pentium® 4 processor logo with HT Technology symbol.
Download: Intel Hyper-Threading Test Utility 1.0
News source: In-House
Only works with Intel Pentium 4 HT enabled configurations.