How to Fix [success] Dell 3040 SFF Big Sur Beta

By Big Sur
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How to Fix [success] Dell 3040 SFF Big Sur Beta

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

  • Confirm your hardware specifications (CPU, GPU, Motherboard).
  • Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

  1. Verify your network controller model (Intel, Broadcom, Realtek).
  2. Ensure the correct kext (e.g., AirportItlwm or BrcmPatchRAM) is loaded in your config.
  3. Clear network interfaces and reset NVRAM if changes don't apply.

Verification

  • Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:


Optiplex 3040 sff This time specification

CPU: intel core i3-6100
MEM: DDR3L 1600 MHz 4 GB x 2
HDD: SAMSUNG SSD 860 EVO 500GB
Internal audio: Realtek HDA codec ALC 3234​
Internal network: Realtek RTL 8111HSD-CG Gigabit Ethernet LAN 10/100/1000 Mb / s Controller Embedded​
graphics: intel HD graphics 530/510 Chipset: Intel H110​
Power: 180 W​
...​

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Author: oldmacharu

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