Dell Inspiron 17 7779 2-in-1 Inspiron 17 70002-in-1 Service Manual - Page 128

Enabling or disabling the USB in BIOS setup program, Fixing a no-boot issue caused by USB emulation

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2 Go to www.dell.com/support. 3 Click or tap Product support enter the Service Tag of your computer, and then click or tap Submit. NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model. 4 Click or tap Drivers & downloads → Find it myself. 5 Scroll down the page and expand Chipset. 6 Click or tap Download to download the USB 3.0 driver for your computer. 7 After the download is complete, navigate to the folder where you saved the USB 3.0 driver file. 8 Double-click or double-tap the driver file icon and follow the instructions on screen. Enabling or disabling the USB in BIOS setup program 1 Turn on or restart your computer. 2 Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program. The BIOS setup program is displayed. 3 On the left pane, select Settings → System Configuration → USB Configuration. The USB configuration is displayed on the right pane. 4 Select or clear the Enable External USB Port check box to enable or disable it respectively. 5 Save the BIOS setup program settings and exit. Fixing a no-boot issue caused by USB emulation Sometimes the computer does not boot to the operating system when USB devices are connected to the computer during startup. This behavior occurs because the computer is looking for bootable files in the USB devices. Follow these steps to fix the no-boot issue: 1 Turn on or restart your computer. 2 Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program. The BIOS setup program is displayed. 128

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2
Go to
www.dell.com/support
.
3
Click or tap
Product support
enter the Service Tag of your computer,
and then click or tap
Submit
.
NOTE:
If you do not have the Service Tag, use the auto-detect
feature or manually browse for your computer model.
4
Click or tap
Drivers & downloads
→
Find it myself
.
5
Scroll down the page and expand
Chipset
.
6
Click or tap
Download
to download the USB 3.0 driver for your
computer.
7
After the download is complete, navigate to the folder where you saved
the USB 3.0 driver file.
8
Double-click or double-tap the driver file icon and follow the instructions
on screen.
Enabling or disabling the USB in BIOS setup program
1
Turn on or restart your computer.
2
Press F2 when the Dell logo is displayed on the screen to enter the BIOS
setup program.
The BIOS setup program is displayed.
3
On the left pane, select
Settings
→
System Configuration
→
USB
Configuration
.
The USB configuration is displayed on the right pane.
4
Select or clear the
Enable External USB Port
check box to enable or
disable it respectively.
5
Save the BIOS setup program settings and exit.
Fixing a no-boot issue caused by USB emulation
Sometimes the computer does not boot to the operating system when USB
devices are connected to the computer during startup. This behavior occurs
because the computer is looking for bootable files in the USB devices. Follow
these steps to fix the no-boot issue:
1
Turn on or restart your computer.
2
Press F2 when the Dell logo is displayed on the screen to enter the BIOS
setup program.
The BIOS setup program is displayed.
128