User manual DELL LATITUDE LT

[. . . ] Dell® Latitude® LT System User's Guide Notice Information in this manual is subject to change without notice and does not represent a commitment on the part of Dell Computer Corporation. Dell Computer Corporation shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from the furnishing, performance, or use of this material. Dell strongly recommends that separate permanent written records be kept of all important data. Data may be lost or altered in virtually any electronic memory product under certain circumstances. Therefore, Dell assumes no responsibility for data lost or otherwise rendered unusable whether as a result of improper use, repairs, defects, battery replacement, use after the specified battery life has expired, or any other causes. [. . . ] If you enter a wrong password three times, the message System Disabled appears. Slide the power switch to turn off the computer, turn it on again, and enter the correct password. Supervisor Password and User Password Two types of passwords limit the access at different levels. To set the user password, you always have to set the supervisor password. When you set the two passwords, a person who knows only the user password has the limitations below: When setting items in the Setup Utility The person who does not know the supervisor password cannot set: · · · Set Supervisor Password Password on boot Power Management Security Security Features 6-1 · · Diskette access Fixed disk boot sector When the system starts or resumes from the suspend-to-disk mode If you have enabled Password on boot in the Security menu of the Setup Utility, the system requires a password when you turn on the computer. If you have enabled Power Management Security in the Power menu of the Setup Utility, the system requires a password when the system resumes from the suspend-to-disk mode. The person who does not know the supervisor password cannot read/write a floppy disk when the item of Diskette access is defined as Supervisor in the Security menu of the Setup Utility. Setting the Password 1. In the Security menu of the Setup Utility, select Set Supervisor Password or Set User Password and press Enter. The system restarts and asks for the password you have set. If you use the computer personally We recommend that you set the supervisor password. You can prevent other people from using your computer by enabling Password on boot in the Security menu of the Setup Utility. If you share the computer with others We recommend that a person who administers the computer set both supervisor and user passwords and let the other people know only the user password. Deleting the Password 1. In the Security menu of the Setup Utility, select the password item you want to delete and press Enter. Without typing any characters, press Enter. 6-2 Dell Latitude LT System User's Guide 4. The system restarts. Preventing Infection of Computer Viruses You can protect against some viruses by limiting writing to the hard disk. To limit writing to the hard disk, set the item Fixed disk boot sector to Write Protect in the Security menu of the Setup Utility. · You cannot prevent infection of all types of viruses with the above operation. · Even if a warning message appears, the system may not be infected in some cases. Security Features 6-3 Security Slot You can prevent theft by using a security cable and the security slot on the left or right side of your computer. 6-4 Dell Latitude LT System User's Guide CHAPTER 7 Setup Utility This chapter describes how to run the Setup Utility to change settings on your computer. Running the Setup Utility With the Setup Utility, you can customize the system configuration information, such as time and date, port assignments, passwords or power management settings. The information you have specified is saved in a special area called CMOS RAM, which the system reads every time you turn on the computer. Contents of the Setup Utility The Setup Utility consists of five menu pages, as follows: · · · · · Main: Basic system configuration Advanced: Device interface configuration (I/O ports, sound settings) Security: Password settings Power: Exit: Power management (battery saving settings) Exit the Setup Utility or return to the default values Entering and Exiting the Setup Utility 1. Select one of the exit methods, and press Enter. Setup Utility 7-1 6. To turn off the computer when the Setup Utility is open, slide the power switch. Using the Setup Utility To navigate through the different menus, you can use the following keys: Moves the cursor from one menu to another. When a sub-menu is open, this key closes the sub-menu. F9 Space bar Replaces the settings on the current menu with their default values (date and time are not changed). Items with þ marks contain sub-menus. F10 F1 7-2 Dell Latitude LT System User's Guide Main Menu System Time Defines the system time, using the format hour:minute:second (24hour format). The Tab key moves the cursor, and the space bar and the "-" key change numerals. The Tab key moves the cursor, and the space bar and the "-" key change numerals. [. . . ] If Dell elects to exchange a system or component, the exchange will be made in accordance with Dell's Exchange Policy in effect on the date of the exchange. In any instance in which Dell issues a Return Materials Authorization Number, Dell must receive the product(s) for repair prior to the expiration of the warranty period in order for the repair(s) to be covered by the warranty. If you chose one of the available warranty and service options in place of the standard limited one-year warranty described in the preceding text, the option you chose will be listed on your invoice. "Total Satisfaction" Return Policy (U. S. and Canada Only) If you are an end-user customer who bought new products directly from a Dell company, you may return them to Dell within 30 days of the date of invoice for a refund or credit of the product purchase price. [. . . ]