Hyper-Threading; Clearing Forgotten Passwords - Dell Dimension 8300 Series Service Manual

Hyper-Threading

Hyper-Threading is an Intel® technology that can enhance overall computer 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, 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 about using Hyper-Threading with your software.
To determine if your computer is using Hyper-Threading technology:
1. Click the Start button, right-click My Computer, and then click Properties.
2. Click Hardware and click Device Manager.
3. In the Device Manager window, click the plus (+) sign next to the processor type. If Hyper-Threading is enabled, the processor is listed twice.
You can enable or disable Hyper-Threading through the
Dell Support website at support.dell.com.

Clearing Forgotten Passwords

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual.
If you forget your user or setup password, you cannot operate your computer or change settings in the system setup program until you clear the forgotten
password(s).
NOTICE: This process erases both the system and setup passwords.
1. Shut down the computer through the Start menu.
NOTICE: To disconnect a network cable, first unplug the cable from your computer, and then unplug it from the network wall jack.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
4. Open the computer cover.
5. Locate jumper PSWD on the
6. Close the computer cover, plug your computer into an electrical outlet, and turn on the computer.
The existing password(s) will be erased.
7. Shut down the computer.
NOTICE: To disconnect a network cable, first unplug the cable from your computer, and then unplug it from the network wall jack.
8. Turn off any attached devices and disconnect them from their electrical outlets.
9. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
10. Open the computer cover.
11. Reconnect the jumper plug to jumper PSWD on the
12. Close the computer cover.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
13. Connect your computer and devices to electrical outlets, and turn them on.
Turning on your computer with the PSWD jumper installed reenables the password feature.
system setup
system board and remove the jumper plug.
system board.
program. For more information on Hyper-Threading, search the Knowledge Base on the