Service Manual
Table Of Contents
- Inspiron 7415 2-in-1 Service Manual
- Contents
- Working inside your computer
- Removing and installing components
- Device drivers
- System setup
- Troubleshooting
- SupportAssist diagnostics
- Locate the Service Tag or Express Service Code of your Dell computer
- System diagnostic lights
- Built-in self-test (BIST)
- Recovering the operating system
- Flashing the BIOS
- Flashing BIOS (USB key)
- Backup media and recovery options
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Getting help and contacting Dell

The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options
are:
● Removable Drive (if available)
● STXXXX Drive (if available)
NOTE: XXX denotes the SATA drive number.
● Optical Drive (if available)
● SATA Hard Drive (if available)
● Diagnostics
The boot sequence screen also displays the option to access the System Setup screen.
One time boot menu
To enter one time boot menu, turn on your computer, and then press F12 immediately.
NOTE: It is recommended to shutdown the computer if it is on.
The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options
are:
● Removable Drive (if available)
● STXXXX Drive (if available)
NOTE: XXX denotes the SATA drive number.
● Optical Drive (if available)
● SATA Hard Drive (if available)
● Diagnostics
The boot sequence screen also displays the option to access the System Setup screen.
System setup options
NOTE: Depending on your computer and its installed devices, the items listed in this section may or may not appear.
Table 3. System setup options—Main menu
Main
System Time Displays the current time in hh:mm:ss format.
System Date Displays the current date in mm/dd/yyyy format.
BIOS Version Displays the BIOS version.
Product Name Displays the model number of your computer.
Service Tag Displays the service tag of your computer.
Asset Tag Displays the asset tag of your computer.
CPU Type Displays the processor type.
CPU Speed Displays the processor speed.
CPU ID Displays the processor identification code.
CPU Cache
L1 Cache Displays the processor L1 cache size.
L2 Cache Displays the processor L2 cache size.
L3 Cache Displays the processor L3 cache size.
First HDD Displays the type of hard drive installed.
62 System setup