Dell OptiPlex 320 - Manual (Page 11)

7. Disconnect the computer power cable from the electrical outlet, and press the power button to ground the system board.
8. Remove the computer cover.
9. Locate the 3-pin password jumper on the system board and move the jumper from pins 2 and 3 to pins 1 and 2 to reenable the password feature.
10. Replace the computer cover.
11. Connect your computer and devices to electrical outlets, and turn them on.
12. Assign a new system and/or administrator password.
Clearing CMOS Settings
1. Follow the procedures in Before You Begin .
2. Reset the current CMOS settings:
a. Locate the 3-pin CMOS jumper (RTC_RST) on the system board (see Clearing Forgotten Passwords ).
b. Remove the CMOS jumper plug from pins 1 and 2.
c. Place the CMOS jumper plug on pins 2 and 3 and wait for approximately 5 seconds.
d. Return the CMOS jumper plug to pins 1 and 2.
3. Replace the computer cover (see Replacing the Computer Cover ).
4. Attach the computer stand, if used.
5. Connect your computer and devices to electrical outlets, and turn them on.
Hyper-Threading
Hyper-Threading is an Intel® technology that can enhance overall computer performance by allowing one physical processor to function as two logical
processors, capable of performing certain tasks simultaneously. It is recommended that you use the Microsoft® Windows® XP Service Pack 1 (SP1) or higher
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 system setup (see System Setup ).
Power Management
Your computer can be set to use less power when you are not working. You control the power usage through the operating system installed on your computer
and certain option settings in system setup (see
System Setup ). These periods of reduced power are called "sleep modes."
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
NOTE: This procedure enables the password feature. When you enter system setup (see Entering System Setup ), both system and administrator
password options appear as Not Set—meaning that the password feature is enabled but no password is assigned.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.