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Bookmark or Share- How to Enable Secure Boot on Your Dell DeviceLearn how to switch from Legacy to UEFI mode and enable Secure Boot for Windows 11 on your Dell computer. Secure Boot protects the boot process against security attacks from malicious code like malware and ransomware.
- Dell computers tested for update to Windows 11This article designates Dell laptops and desktops that were tested for upgrade from Windows 10 to Windows 11 at point of Windows 11 release, as well as update from Windows 11 to Windows 11 2022 Update (build 22H2).
- Support for OptiPlex 390 | Drivers & Downloads | Dell USFind and download the latest drivers, firmware and software for your Dell OptiPlex 390 desktop computer. Enter your service tag or product name to access the support page.
- 390, CPU upgrade - DellThe 2011 Optiplex 390 uses the Dell OEM Intel H61 Express chipset. This is not the same as the retail Intel H61 Express chipset. The fasted CPU validated by Dell for the Optiplex 390 and our OEM BIOS was = PN40G i5-2400,3.10GHz,4C,Sandy Bridge,D2
- Dell OptiPlex 390 System BIOS, A02 | Driver Details | Dell USThis package contains the Dell system BIOS update for OptiPlex 390 system. BIOS is a firmware that is embedded on a small memory chip on the computer's system board. It controls the keyboard, monitor, disk drives and other devices.
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