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  1. bibo159

    The Dell OptiMac Big Sur/OpenCore Thread - For 7020/9020 Optiplex Desktops

    Thanks for taking a look, All physical usb ports are functional in my set up because of the way i have laid them out, Though was more of a warning to others, I have drew a block diagram because it's not the easiest thing to explain. I used another PC case front I/O for mapping the internal USB2...
  2. bibo159

    The Dell OptiMac Big Sur/OpenCore Thread - For 7020/9020 Optiplex Desktops

    Take care! I have resolved the issue by double checking my BIOS settings and finding; Primary Display Adapter -> AUTO Multi-Monitor Mode -> Disabled After changing these to; Primary Display Adapter -> dGPU Multi-Monitor Mode -> Enabled with AAPL,ig-platform-id set to 04001204 VDA Decoder is...
  3. bibo159

    The Dell OptiMac Big Sur/OpenCore Thread - For 7020/9020 Optiplex Desktops

    This has still given me VDA Decoder Failed
  4. bibo159

    The Dell OptiMac Big Sur/OpenCore Thread - For 7020/9020 Optiplex Desktops

    Thanks for the prompt response, I will try that config now. I concluded headless is inoperable from the VDA Decoder state in Hackintool and no iGPU data displayed in Intel Power Gadget.
  5. bibo159

    The Dell OptiMac Big Sur/OpenCore Thread - For 7020/9020 Optiplex Desktops

    I have managed to transition over to OC and install/boot Big Sur using a combo of this guide and Zearp's GitHub thread, However i am unable to get the i7 4770's iGPU to run in headless, being a novice to OC i'm unsure were i have gone wrong. or if it is at all possible to get headless to work...
  6. bibo159

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    Indeed, I am immensely proud of the final product, current iteration* and have gained a plethora of knowledge and experience.
  7. bibo159

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    Yes Game Bench's guides absolutely laid the foundation to my case modifications, However I wasn't keen on how restrictive the front panel was so i opted to trace my fan's internal dimensions and grind that piece out. I also hacked away at the internal moulding of the plastic front bezel creating...
  8. bibo159

    The 4K Dell OptiMac - 9020 MT - Core i7-4790 - Radeon RX 570 - LG 4K IPS Monitor

    Thank you for your in-depth guide and continued development on the Dell OptiMac I had success mounting a Cooler Master Hyper H412R utilising the Dell OEM backplate, Both the OEM Dell CPU cooler and the CM H412R have M3 thread, however the H412R is designed to have taller posts protrude through...
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