Dell OptiPlex 7490 All-In-One - Updating the BIOS in Windows

Table 18. System setup options—Performance menu (continued)
Performance
Enable C-State Control Enable or disable additional processor sleep states.
By default, the option is enabled.
Intel Turbo Boost Technology
Enable Intel Turbo Boost Technology Enable or disable Intel TurboBoost mode of the processor.
By default, the option is enabled.
Intel Hyper-Threading Technology
Enable Intel Hyper-Threading Technology Enable or disable Hyper-Threading in the processor.
By default, the option is enabled.
Table 19. System setup options—System Logs menu
System Logs
BIOS Event Log
Clear BIOS Event Log Display BIOS events.
By default, the Keep option is enabled.
Updating the BIOS in Windows
Prerequisites
It is recommended to update your BIOS (System Setup), when you replace the system board or if an update is available.
About this task
NOTE:
If BitLocker is enabled, it must be suspended before updating the system BIOS, and then re-enabled after the BIOS
update is completed.
Steps
1. Restart the computer.
2. Go to www.dell.com/support.
● Enter the Service Tag or Express Service Code and click Search.
● Click Drivers & Downloads.
● Click Detect Drivers and follow the on-screen instructions.
3. If you are unable to detect or find the Service Tag, click Browse all products.
4. Choose the appropriate category to reach the product page.
5. Select your computer model, followed by its model number.
NOTE: The Product Support page of your computer appears.
6. Click Drivers & Downloads.
NOTE: The Drivers & Downloads section is displayed.
7. Click Category, and select BIOS from the drop-down list.
8. Click the toggle button Show downloads for only THIS PC XXXXXXX.
NOTE: XXXXXXX denotes the Service Tag.
9. Select the latest BIOS file and click Download.
10. After the download is complete, browse to the folder where you saved the system BIOS executable file.
11. Double-click the system BIOS executable file.
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System setup