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Optiplex 990 with A20 BIOS - No UEFI "Onboard NIC" boot option for PXE Booting

We have 4 classrooms of Optiplex 990s and I intend to image them with Windows 10.

I upgraded the BIOS to the latest version A20, and there is no UEFI "Onboard Nic" boot option only a Legacy one. This means that it won't PXE Boot for a UEFI image.

Am I missing something?

Is it supposed to have it?

Thanks

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RE: Optiplex 990 with A20 BIOS - No UEFI "Onboard NIC" boot option for PXE Booting

Hi Heidi,

Thank you for writing to the Dell Community Forum.

Request you to please go to the system BIOS and change the below settings,

Under Settings > General

Select Boot sequence

Change the boot list option to UEFI

Under boot sequence, place a check mark on Onboard NIC

Under Settings > System Configuration

Select Integrated NIC

Under Integrated NIC, select the option Enabled w/PXE

Select SATA Operation

Under SATA Operation, select the option AHCI

Save the settings and then try to image the Windows 10 operating system.

Kindly get back if there are any further queries.

For me to better assist in troubleshooting, please click my DELL-username and send me a Private Message with the Dell Service Tag number and your email address.

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RE: Optiplex 990 with A20 BIOS - No UEFI "Onboard NIC" boot option for PXE Booting

A20 was to address  Intel ME Firmware to address security advisory CVE-2017-5689 / INTEL-SA-00075


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