Answer
This question was answered on March 29, 2007.
Much of the information contained herein may have changed since posting.
Hyper-Threading is an Intel technology that can enhance overall performance by allowing one physical microprocessor to function as two logical microprocessors, capable of performing certain tasks simultaneously. It is recommended that you use the Microsoft Windows XP operating system because Windows XP is optimized to take advantage of Hyper-Threading technology. While many programs can benefit from Hyper-Threading technology, some programs have not been optimized for Hyper-Threading and may require an update from the software manufacturer. Contact the software manufacturer for updates and information on using your software with Hyper-Threading.
To determine if your computer is using Hyper-Threading technology:
Click the Start button, right-click My Computer, and then click Properties.
Click Hardware and click Device Manager.
In the Device Manager window, click the plus (+) sign next to the processor type. If Hyper-Threading is enabled, the processor is listed twice.
To enable or disable Hyper-Threading:
Shut down and restart the computer.
When the DELL logo appears, press <F2> immediately to enter the system setup program.
If you wait too long and the Microsoft Windows logo appears, continue to wait until you see the Windows desktop. Then shut down your computer through the Start menu and try again.
When the system setup program screen appears, highlight CPU Information and press <Enter>.
When the CPU information screen appears, highlight Hyper-Threading and press the spacebar on the keyboard to select Enable or Disable.
Press <ESC> to save the setting and exit the CPU Information screen.
Press <ESC> to Save and Exit.
When you see the message Save changes and exit now, press <Enter>.
Your computer will restart.