Dell Studio 1558 (Early 2010) - Manual (Page 311)

System Setup
311
The system setup program allows you to configure user-selectable options in
the BIOS, such as date and time or system password. See "Viewing System
Settings With the System Setup Program" on page 307 for more information.
NOTE:
Unless you understand what effect the settings have on the computer, do
not change the settings for this program.
Viewing the BIOS Settings
1 Open System Information by clicking the Start button and selecting All
Programs.
2 Click Accessories→ System Tools → System Information.
3 Locate the BIOS Version/Date item in System Summary.
This BIOS Version/Date item displays the BIOS version and date.
Upgrading the BIOS (Flashing the BIOS)
The BIOS may require flashing when an update is available or when replacing
the system board.
NOTE:
It is recommended that you review specifics about the BIOS update to
determine if it applies to your system. Some updates contain changes that impact
only certain configurations, or provide new features that may/may not apply to your
environment.
1 Turn on the computer.
2 Locate the BIOS update file for your computer at the Dell Support
website at support.dell.com.
3 Click Download Now to download the file.
4 If the Export Compliance Disclaimer window appears, click Yes, I Accept
this Agreement.
The File Download window appears.
5 Click Save this program to disk, and then click OK.
The Save In window appears.
6 Click the down arrow to view the Save In menu, select Desktop, and then
click Save.
The file downloads to your desktop.