ru379 Posted June 29, 2023 Posted June 29, 2023 (edited) Hi, I've recentrly found an old Optiplex 990 with an i7 2700 and I would like to install big sur or monterey if it is possible to this machine, obviously with a dedicated gpu I bought. The problem is that when I made the usb installer with the EFI folder, the PC does not recognise the drive in the UEFI boot mode although it does in legacy mode but it does not work in that mode. I made the installer many times and trying other vanilla images and USBs I even tried a SSD with macOS preinstalled alredy but it does not recognise it. It only works with Windows drives. Please help me. Edited July 8, 2023 by ru379
Administrators MaLd0n Posted June 30, 2023 Administrators Posted June 30, 2023 Sata ahci on bios setup? -Guides and Tutorials HERE -Hackintosh Tutorial Database - HERE -The largest EFI folder collection for Hackintosh HERE -Support Olarila Vanilla Hackintosh by making a donation HERE -Professional Hackintosh Support since 2006 HERE
ru379 Posted July 8, 2023 Author Posted July 8, 2023 On 6/30/2023 at 4:52 PM, MaLd0n said: Sata ahci on bios setup? Yes, it was the first thing i checked with no result
ru379 Posted July 8, 2023 Author Posted July 8, 2023 Fixed, I switched to legacy boot and did all the necessary changes to the EFI folder to make it work. Now it is running monterey very well
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