Service Manual
Table 7. System setup options—Boot menu
Boot
Boot Conguration
Wait for ‘F1’ If Error Allows you to enable or disable the F1 screen. Default:
All, but KB.
Secure Boot Control Allows you to enable or disable the secure boot control.
Default: Disabled.
Load Legacy OPROM Default: Enabled.
Set Boot Priority
Boot List Option Allows you to select the boot list option.
Default: Legacy
USB Boot Support Allows you to enable or disable USB Boot support.
Default: Enabled.
1st Boot Allows you to enable or disable the 1st boot device.
Default: Hard Disk.
2nd Boot Allows you to enable or disable the 2nd boot device.
Default: USB Hard Disk.
3rd Boot Allows you to enable or disable the 3rd boot device.
Default: CD/DVD.
4th Boot Allows you to enable or disable the 4th boot device.
Default: Floppy.
5th Boot Allows you to enable or disable the 5th boot device.
Default: Network.
Table 8. System setup options—Exit menu
Save & Exit
Save Changes and Reset Allows you to exit system setup and save your changes.
Discard Changes and Reset Allows you to exit system setup and load previous values
for all system setup options.
Restore Defaults Allows you to load default values for all system setup
options.
Clearing CMOS Settings
WARNING: Before working inside your computer, read the safety information that shipped with your computer and
follow the steps in Before working inside your computer. After working inside your computer, follow the instructions
in
After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting.
1 Lay the system on the right side.
2 Remove the stability foot.
3 Remove the left and right side-panels. See “Removing the side panels”.
4 Locate the CMOS jumper (CMOS_CLR) on the system board. See “system-board components”.
5 Remove the jumper plug from pins 2 and 3.
6 Fix it on pins 1 and 2.
7 Wait for approximately ve seconds to clear the CMOS setting.
136