Dell Alienware Aurora R4 Owners Manual

System Setup Utility151
Long duration maintainedAllows you to change the long duration 
time limit.
Short duration power limitAllows you to change the short duration 
power limit.
1-Core Ratio LimitAllows you to change the ratio limit of the 
processor’s first core.
2-Core Ratio LimitAllows you to change the ratio limit of the 
processor’s second core.
3-Core Ratio LimitAllows you to change the ratio limit of the 
processor’s third core.
4-Core Ratio LimitAllows you to change the ratio limit of the...

152System Setup Utility
Boot Sequence
This feature allows you to change the boot sequence for devices.
Boot Options
•Diskette Drive — The computer attempts to boot from the floppy disk 
drive. If no operating system is on the drive, the computer generates an 
error message.
•
Hard Drive — The computer attempts to boot from the primary hard 
drive. If no operating system is on the drive, the computer generates an 
error message.
User Password:Allows you to change the user password. 
You cannot use the...

System Setup Utility153
•CD/DVD/CD-RW Drive — The computer attempts to boot from the 
optical drive. If no disc is in the drive, or if the disc is not bootable, 
the computer generates an error message.
•
USB Storage Device — Insert the memory device into a USB connector 
and restart the computer. When 
F12 Boot Options appears in the 
lower-right corner of the screen, press . The BIOS detects the 
device and adds the USB flash option to the boot menu.
 NOTE: To boot to a USB device, the device must be...

154System Setup Utility
 NOTE: Write down your current boot sequence in case you want to restore it.
3Press the up- and down-arrow keys to move through the list of devices.
4Press plus (+) or minus (–) to change the boot priority of the device.
Clearing Forgotten Passwords
 WARNING: Before working inside your computer, read the safety information 
that shipped with your computer and follow the steps in Before You Begin on 
page 13. For additional safety best practices information, see the Regulatory...

System Setup Utility155
Password:
4Wait for approximately five seconds to clear the password setting.
5Remove the 2-pin jumper plug from pins 1 and 2 and replace it on pins 2 
and 3.
6Replace the left side-panel. See Replacing the Left Side-Panel on 
page 27.
7Follow the steps in After Working Inside Your Computer on page 15.
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156System Setup Utility
Clearing CMOS Passwords
 WARNING: Before working inside your computer, read the safety information 
that shipped with your computer and follow the steps in Before You Begin on 
page 13. For additional safety best practices information, see the Regulatory 
Compliance Homepage at dell.com/regulatory_compliance.
 
WARNING: The computer must be disconnected from the electrical outlet to 
clear the CMOS setting.
1Remove the left side-panel. See Left Side-Panel on page 25.
2Locate the...

System Setup Utility157
4Wait for approximately five seconds to clear the CMOS setting.
5Remove the 2-pin jumper plug from pins 1 and 2 and replace it on pins 2 
and 3.
6Replace the left side-panel. See Replacing the Left Side-Panel on 
page 27.
7Follow the steps in After Working Inside Your Computer on page 15.
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158System Setup Utility
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Flashing the BIOS159
32
Flashing the BIOS
The BIOS may require flashing when an update is available or when replacing 
the system board. To flash the BIOS:
1
Turn on the computer. 
2Go to support.dell.com/support/downloads.
3Locate the BIOS update file for your computer:
 NOTE: The Service Tag for your computer is located on a label at the back of 
your computer.
If you have your computer’s Service Tag:
aClick Enter a Tag.
bEnter your computer’s Service Tag in the Enter a service tag: field, 
click 
Go,...

160Flashing the BIOS
8Double-click the file icon on the desktop and follow the instructions on 
the screen.
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